Finding the Third Proportional to 13,781.25 and 21,391.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,781.25 : 21,391.88 = 21,391.88 : x
2. Step 2: Convert to fraction form
   13,781.25/21,391.88 = 21,391.88/x
3. Step 3: Cross multiply
   13,781.25x = 21,391.88 × 21,391.88
4. Step 4: Simplify right side
   13,781.25x = 457,612,316.02
5. Step 5: Solve for x
   x = 457,612,316.02/13,781.25
6. Step 6: Final answer
   x = 33,205.43