Finding the Third Proportional to 111,311 and 247,536

Step by Step Solution

1. Step 1: Write the proportion equation
   111,311 : 247,536 = 247,536 : x
2. Step 2: Convert to fraction form
   111,311/247,536 = 247,536/x
3. Step 3: Cross multiply
   111,311x = 247,536 × 247,536
4. Step 4: Simplify right side
   111,311x = 61,274,071,296
5. Step 5: Solve for x
   x = 61,274,071,296/111,311
6. Step 6: Final answer
   x = 550,476.33