Finding the Third Proportional to 55,760.91 and 86,371.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,760.91 : 86,371.31 = 86,371.31 : x
2. Step 2: Convert to fraction form
   55,760.91/86,371.31 = 86,371.31/x
3. Step 3: Cross multiply
   55,760.91x = 86,371.31 × 86,371.31
4. Step 4: Simplify right side
   55,760.91x = 7,460,003,622.97
5. Step 5: Solve for x
   x = 7,460,003,622.97/55,760.91
6. Step 6: Final answer
   x = 133,785.55