Get only matching month and year of other column

[newlearnpbi123]

I have two date column,
one column has month-year and another column is weekend-dates, like below image

i want to have only one matching month and year of the month column, like below

the issue is starting of month and end of month sometimes present in previous month as highlighted in first image,

can someone help me get the result of 2nd image, any date is fine as long it is only one date matching the month column, so i could use it in  my slicer.

@PaulDBrown 

[PaulDBrown · Accepted solution]

Here is one way.

1) a measure for the date : 

Date Measure = MAX('Table'[wk_end_dt])

2) A measure to get the second date by month (to avoid the issue of having a date from the previous month in the scope of the following month)

2Wk Date =
VAR _Month =
    MAX ( 'Table'[Month] )
VAR _RNK =
    RANKX (
        FILTER ( ALL ( 'Table' ), 'Table'[Month] = _Month ),
        [Date Measure],
        ,
        ASC
    )
RETURN
    CALCULATE (
        [Date Measure],
        FILTER ( ALL ( 'Table'[Month] ), 'Table'[Month] = _Month && _RNK = 2 )
    )

3) and a final measure to display this date by month

2wk date by month =
    MAXX (
        SUMMARIZE ( 'Table', 'Table'[Month], 'Table'[wk_end_dt], "_okDate", [2Wk Date] ),
        [_okDate]
    )

[newlearnpbi123]

thank you sir @PaulDBrown