Finding the Third Proportional to 82,685 and 131,099

Step by Step Solution

1. Step 1: Write the proportion equation
   82,685 : 131,099 = 131,099 : x
2. Step 2: Convert to fraction form
   82,685/131,099 = 131,099/x
3. Step 3: Cross multiply
   82,685x = 131,099 × 131,099
4. Step 4: Simplify right side
   82,685x = 17,186,947,801
5. Step 5: Solve for x
   x = 17,186,947,801/82,685
6. Step 6: Final answer
   x = 207,860.53