Solve for P and thanks for help:
P*[(1-(1.005)^-60)/(.005)] + [89932.09*(1.005)^-60] - 100000=0, solve for P
P*[51.725561] + [66,673.15] - 100,000 = 0
P*[51.725561] - 33,326.85 = 0
P*[51.725561] =33,326.85 divide both sides by 51.725561
P =644.30 - Both sides of the equation balance.