Finding the Third Proportional to 56,504.25 and 87,540.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,504.25 : 87,540.75 = 87,540.75 : x
2. Step 2: Convert to fraction form
   56,504.25/87,540.75 = 87,540.75/x
3. Step 3: Cross multiply
   56,504.25x = 87,540.75 × 87,540.75
4. Step 4: Simplify right side
   56,504.25x = 7,663,382,910.56
5. Step 5: Solve for x
   x = 7,663,382,910.56/56,504.25
6. Step 6: Final answer
   x = 135,624.89