Finding the Third Proportional to 13,324.50 and 16,872.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,324.50 : 16,872.75 = 16,872.75 : x
2. Step 2: Convert to fraction form
   13,324.50/16,872.75 = 16,872.75/x
3. Step 3: Cross multiply
   13,324.50x = 16,872.75 × 16,872.75
4. Step 4: Simplify right side
   13,324.50x = 284,689,692.56
5. Step 5: Solve for x
   x = 284,689,692.56/13,324.50
6. Step 6: Final answer
   x = 21,365.88