Finding the Third Proportional to 111,748 and 240,920

Step by Step Solution

1. Step 1: Write the proportion equation
   111,748 : 240,920 = 240,920 : x
2. Step 2: Convert to fraction form
   111,748/240,920 = 240,920/x
3. Step 3: Cross multiply
   111,748x = 240,920 × 240,920
4. Step 4: Simplify right side
   111,748x = 58,042,446,400
5. Step 5: Solve for x
   x = 58,042,446,400/111,748
6. Step 6: Final answer
   x = 519,404.79