Finding the Third Proportional to 21,359 and 33,605

Step by Step Solution

1. Step 1: Write the proportion equation
   21,359 : 33,605 = 33,605 : x
2. Step 2: Convert to fraction form
   21,359/33,605 = 33,605/x
3. Step 3: Cross multiply
   21,359x = 33,605 × 33,605
4. Step 4: Simplify right side
   21,359x = 1,129,296,025
5. Step 5: Solve for x
   x = 1,129,296,025/21,359
6. Step 6: Final answer
   x = 52,872.14