Finding the Third Proportional to 3,721.50 and 8,553.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,721.50 : 8,553.38 = 8,553.38 : x
2. Step 2: Convert to fraction form
   3,721.50/8,553.38 = 8,553.38/x
3. Step 3: Cross multiply
   3,721.50x = 8,553.38 × 8,553.38
4. Step 4: Simplify right side
   3,721.50x = 73,160,223.89
5. Step 5: Solve for x
   x = 73,160,223.89/3,721.50
6. Step 6: Final answer
   x = 19,658.80