Finding the Third Proportional to 21,330 and 43,508

Step by Step Solution

1. Step 1: Write the proportion equation
   21,330 : 43,508 = 43,508 : x
2. Step 2: Convert to fraction form
   21,330/43,508 = 43,508/x
3. Step 3: Cross multiply
   21,330x = 43,508 × 43,508
4. Step 4: Simplify right side
   21,330x = 1,892,946,064
5. Step 5: Solve for x
   x = 1,892,946,064/21,330
6. Step 6: Final answer
   x = 88,745.71