Finding the Third Proportional to 86,406.75 and 134,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,406.75 : 134,104.50 = 134,104.50 : x
2. Step 2: Convert to fraction form
   86,406.75/134,104.50 = 134,104.50/x
3. Step 3: Cross multiply
   86,406.75x = 134,104.50 × 134,104.50
4. Step 4: Simplify right side
   86,406.75x = 17,984,016,920.25
5. Step 5: Solve for x
   x = 17,984,016,920.25/86,406.75
6. Step 6: Final answer
   x = 208,132.08