Finding the Third Proportional to 331,992 and 712,363.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,992 : 712,363.50 = 712,363.50 : x
2. Step 2: Convert to fraction form
   331,992/712,363.50 = 712,363.50/x
3. Step 3: Cross multiply
   331,992x = 712,363.50 × 712,363.50
4. Step 4: Simplify right side
   331,992x = 507,461,756,132.25
5. Step 5: Solve for x
   x = 507,461,756,132.25/331,992
6. Step 6: Final answer
   x = 1,528,536.10