Finding the Third Proportional to 111,500 and 240,498

Step by Step Solution

1. Step 1: Write the proportion equation
   111,500 : 240,498 = 240,498 : x
2. Step 2: Convert to fraction form
   111,500/240,498 = 240,498/x
3. Step 3: Cross multiply
   111,500x = 240,498 × 240,498
4. Step 4: Simplify right side
   111,500x = 57,839,288,004
5. Step 5: Solve for x
   x = 57,839,288,004/111,500
6. Step 6: Final answer
   x = 518,738.01