Finding the Third Proportional to 86,551.50 and 130,986

Step by Step Solution

1. Step 1: Write the proportion equation
   86,551.50 : 130,986 = 130,986 : x
2. Step 2: Convert to fraction form
   86,551.50/130,986 = 130,986/x
3. Step 3: Cross multiply
   86,551.50x = 130,986 × 130,986
4. Step 4: Simplify right side
   86,551.50x = 17,157,332,196
5. Step 5: Solve for x
   x = 17,157,332,196/86,551.50
6. Step 6: Final answer
   x = 198,232.64