Finding the Third Proportional to 111,313 and 247,540

Step by Step Solution

1. Step 1: Write the proportion equation
   111,313 : 247,540 = 247,540 : x
2. Step 2: Convert to fraction form
   111,313/247,540 = 247,540/x
3. Step 3: Cross multiply
   111,313x = 247,540 × 247,540
4. Step 4: Simplify right side
   111,313x = 61,276,051,600
5. Step 5: Solve for x
   x = 61,276,051,600/111,313
6. Step 6: Final answer
   x = 550,484.23