Finding the Third Proportional to 13,857.75 and 20,361.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.75 : 20,361.38 = 20,361.38 : x
2. Step 2: Convert to fraction form
   13,857.75/20,361.38 = 20,361.38/x
3. Step 3: Cross multiply
   13,857.75x = 20,361.38 × 20,361.38
4. Step 4: Simplify right side
   13,857.75x = 414,585,591.89
5. Step 5: Solve for x
   x = 414,585,591.89/13,857.75
6. Step 6: Final answer
   x = 29,917.24