Finding the Third Proportional to 54,180 and 71,910

Step by Step Solution

1. Step 1: Write the proportion equation
   54,180 : 71,910 = 71,910 : x
2. Step 2: Convert to fraction form
   54,180/71,910 = 71,910/x
3. Step 3: Cross multiply
   54,180x = 71,910 × 71,910
4. Step 4: Simplify right side
   54,180x = 5,171,048,100
5. Step 5: Solve for x
   x = 5,171,048,100/54,180
6. Step 6: Final answer
   x = 95,442.01