Finding the Third Proportional to 86,758.59 and 131,231.39

Step by Step Solution

1. Step 1: Write the proportion equation
   86,758.59 : 131,231.39 = 131,231.39 : x
2. Step 2: Convert to fraction form
   86,758.59/131,231.39 = 131,231.39/x
3. Step 3: Cross multiply
   86,758.59x = 131,231.39 × 131,231.39
4. Step 4: Simplify right side
   86,758.59x = 17,221,677,885.37
5. Step 5: Solve for x
   x = 17,221,677,885.37/86,758.59
6. Step 6: Final answer
   x = 198,501.12