Finding the Third Proportional to 239,429 and 357,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,429 : 357,066.50 = 357,066.50 : x
2. Step 2: Convert to fraction form
   239,429/357,066.50 = 357,066.50/x
3. Step 3: Cross multiply
   239,429x = 357,066.50 × 357,066.50
4. Step 4: Simplify right side
   239,429x = 127,496,485,422.25
5. Step 5: Solve for x
   x = 127,496,485,422.25/239,429
6. Step 6: Final answer
   x = 532,502.27