Finding the Third Proportional to 5,335.50 and 10,671

Step by Step Solution

1. Step 1: Write the proportion equation
   5,335.50 : 10,671 = 10,671 : x
2. Step 2: Convert to fraction form
   5,335.50/10,671 = 10,671/x
3. Step 3: Cross multiply
   5,335.50x = 10,671 × 10,671
4. Step 4: Simplify right side
   5,335.50x = 113,870,241
5. Step 5: Solve for x
   x = 113,870,241/5,335.50
6. Step 6: Final answer
   x = 21,342