Finding the Third Proportional to 3,920 and 10,672

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920 : 10,672 = 10,672 : x
2. Step 2: Convert to fraction form
   3,920/10,672 = 10,672/x
3. Step 3: Cross multiply
   3,920x = 10,672 × 10,672
4. Step 4: Simplify right side
   3,920x = 113,891,584
5. Step 5: Solve for x
   x = 113,891,584/3,920
6. Step 6: Final answer
   x = 29,053.98