Finding the Third Proportional to 21,328 and 43,504

Step by Step Solution

1. Step 1: Write the proportion equation
   21,328 : 43,504 = 43,504 : x
2. Step 2: Convert to fraction form
   21,328/43,504 = 43,504/x
3. Step 3: Cross multiply
   21,328x = 43,504 × 43,504
4. Step 4: Simplify right side
   21,328x = 1,892,598,016
5. Step 5: Solve for x
   x = 1,892,598,016/21,328
6. Step 6: Final answer
   x = 88,737.72