DAX Formula

What Data Type are the Lat and Long fields? (text, decimal number?)

A) If the fields are type Decimal Number:

Check Long =
VAR _v1 =
    FORMAT ( MAX ( Table1[Long] ), "#0.00000" )
VAR _T =
    VALUES ( 'Table 2'[Longitude] )
VAR _Tplus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[Longitude] ),
        "Longitude", 'Table 2'[Longitude] + 0.00001
    )
VAR _Tminus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[Longitude] ),
        "Longitude", 'Table 2'[Longitude] - 0.00001
    )
VAR _UN =
    SELECTCOLUMNS (
        UNION ( _T, _Tplus, _Tminus ),
        "Text", FORMAT ( [Longitude], "#0.00000" )
    )
RETURN
    IF ( _v1 IN _UN, "Yes", "No" )

Check Lat =
VAR _V1 =
    FORMAT ( MAX ( Table1[Lat] ), "#0.00000" )
VAR _T =
    VALUES ( 'Table 2'[Latitude] )
VAR _Tplus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[Latitude] ),
        "Latitude", 'Table 2'[Latitude] + 0.00001
    )
VAR _Tminus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[Latitude] ),
        "Latitude", 'Table 2'[Latitude] - 0.00001
    )
VAR _UN =
    SELECTCOLUMNS (
        UNION ( _T, _Tplus, _Tminus ),
        "Text", FORMAT ( [Latitude], "#0.00000" )
    )
RETURN
    IF ( _V1 IN _UN, "Yes", "No" )

B) If the Lat/long Fields are Type Text:

Check Long txt =
VAR _v1 =
    MAX ( Table1[TXT LONG] )
VAR _T =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Long] ),
        "Longitude", VALUE ( 'Table 2'[TXT Long] )
    )
VAR _Tplus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Long] ),
        "Longitude", VALUE ( 'Table 2'[TXT Long] ) + 0.00001
    )
VAR _Tminus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Long] ),
        "Longitude", VALUE ( 'Table 2'[TXT Long] ) - 0.00001
    )
VAR _UN =
    SELECTCOLUMNS (
        UNION ( _T, _Tplus, _Tminus ),
        "Text", FORMAT ( [Longitude], "#0.00000" )
    )
RETURN
    IF ( _v1 IN _UN, "Yes", "No" )

Check Lat txt =
VAR _V1 =
    MAX ( Table1[TXT LAT] )
VAR _T =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Lat] ),
        "Latitude", VALUE ( 'Table 2'[TXT Lat] )
    )
VAR _Tplus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Lat] ),
        "Latitude", VALUE ( 'Table 2'[TXT Lat] ) + 0.00001
    )
VAR _Tminus =
    SELECTCOLUMNS (
        VALUES ( 'Table 2'[TXT Lat] ),
        "Latitude", VALUE ( 'Table 2'[TXT Lat] ) - 0.00001
    )
VAR _UN =
    SELECTCOLUMNS (
        UNION ( _T, _Tplus, _Tminus ),
        "Text", FORMAT ( [Latitude], "#0.00000" )
    )
RETURN
    IF ( _V1 IN _UN, "Yes", "No" )

I've attached the sample PBIX