Finding the Third Proportional to 55,435.32 and 86,862.77

Step by Step Solution

1. Step 1: Write the proportion equation
   55,435.32 : 86,862.77 = 86,862.77 : x
2. Step 2: Convert to fraction form
   55,435.32/86,862.77 = 86,862.77/x
3. Step 3: Cross multiply
   55,435.32x = 86,862.77 × 86,862.77
4. Step 4: Simplify right side
   55,435.32x = 7,545,140,900.29
5. Step 5: Solve for x
   x = 7,545,140,900.29/55,435.32
6. Step 6: Final answer
   x = 136,107.09