Finding the Third Proportional to 54,145 and 84,162

Step by Step Solution

1. Step 1: Write the proportion equation
   54,145 : 84,162 = 84,162 : x
2. Step 2: Convert to fraction form
   54,145/84,162 = 84,162/x
3. Step 3: Cross multiply
   54,145x = 84,162 × 84,162
4. Step 4: Simplify right side
   54,145x = 7,083,242,244
5. Step 5: Solve for x
   x = 7,083,242,244/54,145
6. Step 6: Final answer
   x = 130,819.88