Finding the Third Proportional to 20,218 and 41,443

Step by Step Solution

1. Step 1: Write the proportion equation
   20,218 : 41,443 = 41,443 : x
2. Step 2: Convert to fraction form
   20,218/41,443 = 41,443/x
3. Step 3: Cross multiply
   20,218x = 41,443 × 41,443
4. Step 4: Simplify right side
   20,218x = 1,717,522,249
5. Step 5: Solve for x
   x = 1,717,522,249/20,218
6. Step 6: Final answer
   x = 84,950.16