Finding the Third Proportional to 111,294 and 247,470

Step by Step Solution

1. Step 1: Write the proportion equation
   111,294 : 247,470 = 247,470 : x
2. Step 2: Convert to fraction form
   111,294/247,470 = 247,470/x
3. Step 3: Cross multiply
   111,294x = 247,470 × 247,470
4. Step 4: Simplify right side
   111,294x = 61,241,400,900
5. Step 5: Solve for x
   x = 61,241,400,900/111,294
6. Step 6: Final answer
   x = 550,266.87