Finding the Third Proportional to 111,397.50 and 240,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,397.50 : 240,550.50 = 240,550.50 : x
2. Step 2: Convert to fraction form
   111,397.50/240,550.50 = 240,550.50/x
3. Step 3: Cross multiply
   111,397.50x = 240,550.50 × 240,550.50
4. Step 4: Simplify right side
   111,397.50x = 57,864,543,050.25
5. Step 5: Solve for x
   x = 57,864,543,050.25/111,397.50
6. Step 6: Final answer
   x = 519,442.03