Finding the Third Proportional to 10,108 and 20,505

Step by Step Solution

1. Step 1: Write the proportion equation
   10,108 : 20,505 = 20,505 : x
2. Step 2: Convert to fraction form
   10,108/20,505 = 20,505/x
3. Step 3: Cross multiply
   10,108x = 20,505 × 20,505
4. Step 4: Simplify right side
   10,108x = 420,455,025
5. Step 5: Solve for x
   x = 420,455,025/10,108
6. Step 6: Final answer
   x = 41,596.26