Finding the Third Proportional to 239,904 and 516,713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,904 : 516,713.50 = 516,713.50 : x
2. Step 2: Convert to fraction form
   239,904/516,713.50 = 516,713.50/x
3. Step 3: Cross multiply
   239,904x = 516,713.50 × 516,713.50
4. Step 4: Simplify right side
   239,904x = 266,992,841,082.25
5. Step 5: Solve for x
   x = 266,992,841,082.25/239,904
6. Step 6: Final answer
   x = 1,112,915.34