Finding the Third Proportional to 13,851 and 21,315.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,851 : 21,315.38 = 21,315.38 : x
2. Step 2: Convert to fraction form
   13,851/21,315.38 = 21,315.38/x
3. Step 3: Cross multiply
   13,851x = 21,315.38 × 21,315.38
4. Step 4: Simplify right side
   13,851x = 454,345,211.39
5. Step 5: Solve for x
   x = 454,345,211.39/13,851
6. Step 6: Final answer
   x = 32,802.34