Finding the Third Proportional to 131,499 and 144,864

Step by Step Solution

1. Step 1: Write the proportion equation
   131,499 : 144,864 = 144,864 : x
2. Step 2: Convert to fraction form
   131,499/144,864 = 144,864/x
3. Step 3: Cross multiply
   131,499x = 144,864 × 144,864
4. Step 4: Simplify right side
   131,499x = 20,985,578,496
5. Step 5: Solve for x
   x = 20,985,578,496/131,499
6. Step 6: Final answer
   x = 159,587.36