Finding the Third Proportional to 21,606 and 43,812

Step by Step Solution

1. Step 1: Write the proportion equation
   21,606 : 43,812 = 43,812 : x
2. Step 2: Convert to fraction form
   21,606/43,812 = 43,812/x
3. Step 3: Cross multiply
   21,606x = 43,812 × 43,812
4. Step 4: Simplify right side
   21,606x = 1,919,491,344
5. Step 5: Solve for x
   x = 1,919,491,344/21,606
6. Step 6: Final answer
   x = 88,840.66