Finding the Third Proportional to 367,099.50 and 516,965

Step by Step Solution

1. Step 1: Write the proportion equation
   367,099.50 : 516,965 = 516,965 : x
2. Step 2: Convert to fraction form
   367,099.50/516,965 = 516,965/x
3. Step 3: Cross multiply
   367,099.50x = 516,965 × 516,965
4. Step 4: Simplify right side
   367,099.50x = 267,252,811,225
5. Step 5: Solve for x
   x = 267,252,811,225/367,099.50
6. Step 6: Final answer
   x = 728,011.92