Finding the Third Proportional to 54,189 and 71,919

Step by Step Solution

1. Step 1: Write the proportion equation
   54,189 : 71,919 = 71,919 : x
2. Step 2: Convert to fraction form
   54,189/71,919 = 71,919/x
3. Step 3: Cross multiply
   54,189x = 71,919 × 71,919
4. Step 4: Simplify right side
   54,189x = 5,172,342,561
5. Step 5: Solve for x
   x = 5,172,342,561/54,189
6. Step 6: Final answer
   x = 95,450.05