Finding the Third Proportional to 55,428.50 and 86,002

Step by Step Solution

1. Step 1: Write the proportion equation
   55,428.50 : 86,002 = 86,002 : x
2. Step 2: Convert to fraction form
   55,428.50/86,002 = 86,002/x
3. Step 3: Cross multiply
   55,428.50x = 86,002 × 86,002
4. Step 4: Simplify right side
   55,428.50x = 7,396,344,004
5. Step 5: Solve for x
   x = 7,396,344,004/55,428.50
6. Step 6: Final answer
   x = 133,439.37