DAX Max value from another column based on row value

Hi ,

Need help on DAX Expression to repeat MAX Values of column2 in column3 .

Dataset Name: Measure

COLUMN1 COLUMN2   Column3 <DAX Expression needed>

1            25

2             35

3            70

4           15

5           45

expected output:

COLUMN1 COLUMN2   Column3 <DAX Expression needed>

1            25                       70

2             35                      70

3            70                       70

4           15                       70

5           45                         70