Finding the Third Proportional to 13,781.44 and 21,850.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,781.44 : 21,850.78 = 21,850.78 : x
2. Step 2: Convert to fraction form
   13,781.44/21,850.78 = 21,850.78/x
3. Step 3: Cross multiply
   13,781.44x = 21,850.78 × 21,850.78
4. Step 4: Simplify right side
   13,781.44x = 477,456,641.24
5. Step 5: Solve for x
   x = 477,456,641.24/13,781.44
6. Step 6: Final answer
   x = 34,644.91