Finding the Third Proportional to 366,938.50 and 516,730

Step by Step Solution

1. Step 1: Write the proportion equation
   366,938.50 : 516,730 = 516,730 : x
2. Step 2: Convert to fraction form
   366,938.50/516,730 = 516,730/x
3. Step 3: Cross multiply
   366,938.50x = 516,730 × 516,730
4. Step 4: Simplify right side
   366,938.50x = 267,009,892,900
5. Step 5: Solve for x
   x = 267,009,892,900/366,938.50
6. Step 6: Final answer
   x = 727,669.33