Date Projection

[Modius]

I need a formula to determine the end date of a 6 month program from its start date

[Ocean West]

Start Date  + 180

[comment]

13 minutes ago, Modius said:

the end date of a 6 month program

It's a rather vague requirement; it leaves open the question how to handle a case where start date is August 31, for example. See:
https://fmforums.com/topic/59942-frequency/?do=findComment&comment=284146