Finding the Third Proportional to 111,306 and 247,494

Step by Step Solution

1. Step 1: Write the proportion equation
   111,306 : 247,494 = 247,494 : x
2. Step 2: Convert to fraction form
   111,306/247,494 = 247,494/x
3. Step 3: Cross multiply
   111,306x = 247,494 × 247,494
4. Step 4: Simplify right side
   111,306x = 61,253,280,036
5. Step 5: Solve for x
   x = 61,253,280,036/111,306
6. Step 6: Final answer
   x = 550,314.27