Finding the Third Proportional to 13,614.13 and 20,821.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,614.13 : 20,821.69 = 20,821.69 : x
2. Step 2: Convert to fraction form
   13,614.13/20,821.69 = 20,821.69/x
3. Step 3: Cross multiply
   13,614.13x = 20,821.69 × 20,821.69
4. Step 4: Simplify right side
   13,614.13x = 433,542,670.35
5. Step 5: Solve for x
   x = 433,542,670.35/13,614.13
6. Step 6: Final answer
   x = 31,845.06