Finding the Third Proportional to 111,838.50 and 240,360.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,838.50 : 240,360.75 = 240,360.75 : x
2. Step 2: Convert to fraction form
   111,838.50/240,360.75 = 240,360.75/x
3. Step 3: Cross multiply
   111,838.50x = 240,360.75 × 240,360.75
4. Step 4: Simplify right side
   111,838.50x = 57,773,290,140.56
5. Step 5: Solve for x
   x = 57,773,290,140.56/111,838.50
6. Step 6: Final answer
   x = 516,577.83