Finding the Third Proportional to 366,951 and 516,745.50

Step by Step Solution

1. Step 1: Write the proportion equation
   366,951 : 516,745.50 = 516,745.50 : x
2. Step 2: Convert to fraction form
   366,951/516,745.50 = 516,745.50/x
3. Step 3: Cross multiply
   366,951x = 516,745.50 × 516,745.50
4. Step 4: Simplify right side
   366,951x = 267,025,911,770.25
5. Step 5: Solve for x
   x = 267,025,911,770.25/366,951
6. Step 6: Final answer
   x = 727,688.20