Finding the Third Proportional to 51,384 and 111,040

Step by Step Solution

1. Step 1: Write the proportion equation
   51,384 : 111,040 = 111,040 : x
2. Step 2: Convert to fraction form
   51,384/111,040 = 111,040/x
3. Step 3: Cross multiply
   51,384x = 111,040 × 111,040
4. Step 4: Simplify right side
   51,384x = 12,329,881,600
5. Step 5: Solve for x
   x = 12,329,881,600/51,384
6. Step 6: Final answer
   x = 239,955.66