Finding the Third Proportional to 418,091.50 and 631,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   418,091.50 : 631,055.50 = 631,055.50 : x
2. Step 2: Convert to fraction form
   418,091.50/631,055.50 = 631,055.50/x
3. Step 3: Cross multiply
   418,091.50x = 631,055.50 × 631,055.50
4. Step 4: Simplify right side
   418,091.50x = 398,231,044,080.25
5. Step 5: Solve for x
   x = 398,231,044,080.25/418,091.50
6. Step 6: Final answer
   x = 952,497.35