Finding the Third Proportional to 56,900.25 and 81,960.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,900.25 : 81,960.75 = 81,960.75 : x
2. Step 2: Convert to fraction form
   56,900.25/81,960.75 = 81,960.75/x
3. Step 3: Cross multiply
   56,900.25x = 81,960.75 × 81,960.75
4. Step 4: Simplify right side
   56,900.25x = 6,717,564,540.56
5. Step 5: Solve for x
   x = 6,717,564,540.56/56,900.25
6. Step 6: Final answer
   x = 118,058.61