Finding the Third Proportional to 13,881.38 and 20,799.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,881.38 : 20,799.28 = 20,799.28 : x
2. Step 2: Convert to fraction form
   13,881.38/20,799.28 = 20,799.28/x
3. Step 3: Cross multiply
   13,881.38x = 20,799.28 × 20,799.28
4. Step 4: Simplify right side
   13,881.38x = 432,610,100.52
5. Step 5: Solve for x
   x = 432,610,100.52/13,881.38
6. Step 6: Final answer
   x = 31,164.79