can you let me know if the t will be 37 or 36.5 since i understand that the first deposit is 3 years from today but the last deposit is 6 mths before the money is needed. So in that case wouldn't it be 36.5.

please explain the reasoning behind T. A picture of the question is below

Il Sprint 7:41 AM 100% A corporate treasurer wishes to accumlate a total of 50,000,000 forty years from today. He plan to make equal semiannual deposits into an account earning 12 percent compounded quarterly. What must he the amount of these deposits, if the first deposit will be made exactly three from today at the end of year 3) and the last deposit will be made six months before the $50,000,000 is needed show your work please