Finding the Third Proportional to 99,540 and 131,814

Step by Step Solution

1. Step 1: Write the proportion equation
   99,540 : 131,814 = 131,814 : x
2. Step 2: Convert to fraction form
   99,540/131,814 = 131,814/x
3. Step 3: Cross multiply
   99,540x = 131,814 × 131,814
4. Step 4: Simplify right side
   99,540x = 17,374,930,596
5. Step 5: Solve for x
   x = 17,374,930,596/99,540
6. Step 6: Final answer
   x = 174,552.25