Micheline wishes to purchase a 25-year annuity providing payments of $1000 per month for the first 15 years and $1500 per month for the remaining 10 years. Sovereign Insurance Co. has quoted her a rate of return of 5% compounded annually for such an annuity. How much will it cost Micheline to purchase the annuity from Sovereign?

The answer is supposed to be $195,760.96. Please show work, i am not allowed to use excel.