Finding the Third Proportional to 109,452.50 and 239,664

Step by Step Solution

1. Step 1: Write the proportion equation
   109,452.50 : 239,664 = 239,664 : x
2. Step 2: Convert to fraction form
   109,452.50/239,664 = 239,664/x
3. Step 3: Cross multiply
   109,452.50x = 239,664 × 239,664
4. Step 4: Simplify right side
   109,452.50x = 57,438,832,896
5. Step 5: Solve for x
   x = 57,438,832,896/109,452.50
6. Step 6: Final answer
   x = 524,783.20