Finding the Third Proportional to 331,092 and 714,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,092 : 714,641.50 = 714,641.50 : x
2. Step 2: Convert to fraction form
   331,092/714,641.50 = 714,641.50/x
3. Step 3: Cross multiply
   331,092x = 714,641.50 × 714,641.50
4. Step 4: Simplify right side
   331,092x = 510,712,473,522.25
5. Step 5: Solve for x
   x = 510,712,473,522.25/331,092
6. Step 6: Final answer
   x = 1,542,509.25