Finding the Third Proportional to 51,288 and 111,432

Step by Step Solution

1. Step 1: Write the proportion equation
   51,288 : 111,432 = 111,432 : x
2. Step 2: Convert to fraction form
   51,288/111,432 = 111,432/x
3. Step 3: Cross multiply
   51,288x = 111,432 × 111,432
4. Step 4: Simplify right side
   51,288x = 12,417,090,624
5. Step 5: Solve for x
   x = 12,417,090,624/51,288
6. Step 6: Final answer
   x = 242,105.18