Finding the Third Proportional to 56,715 and 87,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,715 : 87,055.50 = 87,055.50 : x
2. Step 2: Convert to fraction form
   56,715/87,055.50 = 87,055.50/x
3. Step 3: Cross multiply
   56,715x = 87,055.50 × 87,055.50
4. Step 4: Simplify right side
   56,715x = 7,578,660,080.25
5. Step 5: Solve for x
   x = 7,578,660,080.25/56,715
6. Step 6: Final answer
   x = 133,627.08