Finding the Third Proportional to 352,512 and 723,687.75

Step by Step Solution

1. Step 1: Write the proportion equation
   352,512 : 723,687.75 = 723,687.75 : x
2. Step 2: Convert to fraction form
   352,512/723,687.75 = 723,687.75/x
3. Step 3: Cross multiply
   352,512x = 723,687.75 × 723,687.75
4. Step 4: Simplify right side
   352,512x = 523,723,959,500.06
5. Step 5: Solve for x
   x = 523,723,959,500.06/352,512
6. Step 6: Final answer
   x = 1,485,691.15