Finding the Third Proportional to 85,822.50 and 131,286

Step by Step Solution

1. Step 1: Write the proportion equation
   85,822.50 : 131,286 = 131,286 : x
2. Step 2: Convert to fraction form
   85,822.50/131,286 = 131,286/x
3. Step 3: Cross multiply
   85,822.50x = 131,286 × 131,286
4. Step 4: Simplify right side
   85,822.50x = 17,236,013,796
5. Step 5: Solve for x
   x = 17,236,013,796/85,822.50
6. Step 6: Final answer
   x = 200,833.28