Finding the Third Proportional to 21,504 and 43,872

Step by Step Solution

1. Step 1: Write the proportion equation
   21,504 : 43,872 = 43,872 : x
2. Step 2: Convert to fraction form
   21,504/43,872 = 43,872/x
3. Step 3: Cross multiply
   21,504x = 43,872 × 43,872
4. Step 4: Simplify right side
   21,504x = 1,924,752,384
5. Step 5: Solve for x
   x = 1,924,752,384/21,504
6. Step 6: Final answer
   x = 89,506.71