Finding the Third Proportional to 54,920 and 88,428

Step by Step Solution

1. Step 1: Write the proportion equation
   54,920 : 88,428 = 88,428 : x
2. Step 2: Convert to fraction form
   54,920/88,428 = 88,428/x
3. Step 3: Cross multiply
   54,920x = 88,428 × 88,428
4. Step 4: Simplify right side
   54,920x = 7,819,511,184
5. Step 5: Solve for x
   x = 7,819,511,184/54,920
6. Step 6: Final answer
   x = 142,380.03