Finding the Third Proportional to 30,920 and 61,048

Step by Step Solution

1. Step 1: Write the proportion equation
   30,920 : 61,048 = 61,048 : x
2. Step 2: Convert to fraction form
   30,920/61,048 = 61,048/x
3. Step 3: Cross multiply
   30,920x = 61,048 × 61,048
4. Step 4: Simplify right side
   30,920x = 3,726,858,304
5. Step 5: Solve for x
   x = 3,726,858,304/30,920
6. Step 6: Final answer
   x = 120,532.29