Finding the Third Proportional to 10,626 and 20,988

Step by Step Solution

1. Step 1: Write the proportion equation
   10,626 : 20,988 = 20,988 : x
2. Step 2: Convert to fraction form
   10,626/20,988 = 20,988/x
3. Step 3: Cross multiply
   10,626x = 20,988 × 20,988
4. Step 4: Simplify right side
   10,626x = 440,496,144
5. Step 5: Solve for x
   x = 440,496,144/10,626
6. Step 6: Final answer
   x = 41,454.56