Finding the Third Proportional to 111,312 and 244,872

Step by Step Solution

1. Step 1: Write the proportion equation
   111,312 : 244,872 = 244,872 : x
2. Step 2: Convert to fraction form
   111,312/244,872 = 244,872/x
3. Step 3: Cross multiply
   111,312x = 244,872 × 244,872
4. Step 4: Simplify right side
   111,312x = 59,962,296,384
5. Step 5: Solve for x
   x = 59,962,296,384/111,312
6. Step 6: Final answer
   x = 538,686.72