Finding the Third Proportional to 85,839.75 and 131,321.25

Step by Step Solution

1. Step 1: Write the proportion equation
   85,839.75 : 131,321.25 = 131,321.25 : x
2. Step 2: Convert to fraction form
   85,839.75/131,321.25 = 131,321.25/x
3. Step 3: Cross multiply
   85,839.75x = 131,321.25 × 131,321.25
4. Step 4: Simplify right side
   85,839.75x = 17,245,270,701.56
5. Step 5: Solve for x
   x = 17,245,270,701.56/85,839.75
6. Step 6: Final answer
   x = 200,900.76