Finding the Third Proportional to 55,942.50 and 86,427

Step by Step Solution

1. Step 1: Write the proportion equation
   55,942.50 : 86,427 = 86,427 : x
2. Step 2: Convert to fraction form
   55,942.50/86,427 = 86,427/x
3. Step 3: Cross multiply
   55,942.50x = 86,427 × 86,427
4. Step 4: Simplify right side
   55,942.50x = 7,469,626,329
5. Step 5: Solve for x
   x = 7,469,626,329/55,942.50
6. Step 6: Final answer
   x = 133,523.28