Finding the Third Proportional to 472,542 and 712,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   472,542 : 712,669.50 = 712,669.50 : x
2. Step 2: Convert to fraction form
   472,542/712,669.50 = 712,669.50/x
3. Step 3: Cross multiply
   472,542x = 712,669.50 × 712,669.50
4. Step 4: Simplify right side
   472,542x = 507,897,816,230.25
5. Step 5: Solve for x
   x = 507,897,816,230.25/472,542
6. Step 6: Final answer
   x = 1,074,820.47