Finding the Third Proportional to 10,116 and 20,644

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116 : 20,644 = 20,644 : x
2. Step 2: Convert to fraction form
   10,116/20,644 = 20,644/x
3. Step 3: Cross multiply
   10,116x = 20,644 × 20,644
4. Step 4: Simplify right side
   10,116x = 426,174,736
5. Step 5: Solve for x
   x = 426,174,736/10,116
6. Step 6: Final answer
   x = 42,128.78