Finding the Third Proportional to 20,110 and 41,405

Step by Step Solution

1. Step 1: Write the proportion equation
   20,110 : 41,405 = 41,405 : x
2. Step 2: Convert to fraction form
   20,110/41,405 = 41,405/x
3. Step 3: Cross multiply
   20,110x = 41,405 × 41,405
4. Step 4: Simplify right side
   20,110x = 1,714,374,025
5. Step 5: Solve for x
   x = 1,714,374,025/20,110
6. Step 6: Final answer
   x = 85,249.83