Finding the Third Proportional to 21,553.88 and 33,640.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,553.88 : 33,640.31 = 33,640.31 : x
2. Step 2: Convert to fraction form
   21,553.88/33,640.31 = 33,640.31/x
3. Step 3: Cross multiply
   21,553.88x = 33,640.31 × 33,640.31
4. Step 4: Simplify right side
   21,553.88x = 1,131,670,625.10
5. Step 5: Solve for x
   x = 1,131,670,625.10/21,553.88
6. Step 6: Final answer
   x = 52,504.28