Finding the Third Proportional to 111,498.75 and 240,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,498.75 : 240,493.50 = 240,493.50 : x
2. Step 2: Convert to fraction form
   111,498.75/240,493.50 = 240,493.50/x
3. Step 3: Cross multiply
   111,498.75x = 240,493.50 × 240,493.50
4. Step 4: Simplify right side
   111,498.75x = 57,837,123,542.25
5. Step 5: Solve for x
   x = 57,837,123,542.25/111,498.75
6. Step 6: Final answer
   x = 518,724.41