Finding the Third Proportional to 56,271.38 and 87,103.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,271.38 : 87,103.69 = 87,103.69 : x
2. Step 2: Convert to fraction form
   56,271.38/87,103.69 = 87,103.69/x
3. Step 3: Cross multiply
   56,271.38x = 87,103.69 × 87,103.69
4. Step 4: Simplify right side
   56,271.38x = 7,587,052,376.10
5. Step 5: Solve for x
   x = 7,587,052,376.10/56,271.38
6. Step 6: Final answer
   x = 134,829.70