Finding the Third Proportional to 54,459 and 84,150

Step by Step Solution

1. Step 1: Write the proportion equation
   54,459 : 84,150 = 84,150 : x
2. Step 2: Convert to fraction form
   54,459/84,150 = 84,150/x
3. Step 3: Cross multiply
   54,459x = 84,150 × 84,150
4. Step 4: Simplify right side
   54,459x = 7,081,222,500
5. Step 5: Solve for x
   x = 7,081,222,500/54,459
6. Step 6: Final answer
   x = 130,028.51