Finding the Third Proportional to 60,005.81 and 87,540.75

Step by Step Solution

1. Step 1: Write the proportion equation
   60,005.81 : 87,540.75 = 87,540.75 : x
2. Step 2: Convert to fraction form
   60,005.81/87,540.75 = 87,540.75/x
3. Step 3: Cross multiply
   60,005.81x = 87,540.75 × 87,540.75
4. Step 4: Simplify right side
   60,005.81x = 7,663,382,910.56
5. Step 5: Solve for x
   x = 7,663,382,910.56/60,005.81
6. Step 6: Final answer
   x = 127,710.68