Finding the Third Proportional to 621,132 and 932,355.75

Step by Step Solution

1. Step 1: Write the proportion equation
   621,132 : 932,355.75 = 932,355.75 : x
2. Step 2: Convert to fraction form
   621,132/932,355.75 = 932,355.75/x
3. Step 3: Cross multiply
   621,132x = 932,355.75 × 932,355.75
4. Step 4: Simplify right side
   621,132x = 869,287,244,558.06
5. Step 5: Solve for x
   x = 869,287,244,558.06/621,132
6. Step 6: Final answer
   x = 1,399,520.95