Finding the Third Proportional to 111,498 and 240,492

Step by Step Solution

1. Step 1: Write the proportion equation
   111,498 : 240,492 = 240,492 : x
2. Step 2: Convert to fraction form
   111,498/240,492 = 240,492/x
3. Step 3: Cross multiply
   111,498x = 240,492 × 240,492
4. Step 4: Simplify right side
   111,498x = 57,836,402,064
5. Step 5: Solve for x
   x = 57,836,402,064/111,498
6. Step 6: Final answer
   x = 518,721.43