Finding the Third Proportional to 109,807.50 and 239,754

Step by Step Solution

1. Step 1: Write the proportion equation
   109,807.50 : 239,754 = 239,754 : x
2. Step 2: Convert to fraction form
   109,807.50/239,754 = 239,754/x
3. Step 3: Cross multiply
   109,807.50x = 239,754 × 239,754
4. Step 4: Simplify right side
   109,807.50x = 57,481,980,516
5. Step 5: Solve for x
   x = 57,481,980,516/109,807.50
6. Step 6: Final answer
   x = 523,479.55