Finding the Third Proportional to 474,688 and 712,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   474,688 : 712,126.50 = 712,126.50 : x
2. Step 2: Convert to fraction form
   474,688/712,126.50 = 712,126.50/x
3. Step 3: Cross multiply
   474,688x = 712,126.50 × 712,126.50
4. Step 4: Simplify right side
   474,688x = 507,124,152,002.25
5. Step 5: Solve for x
   x = 507,124,152,002.25/474,688
6. Step 6: Final answer
   x = 1,068,331.52