Finding the Third Proportional to 10,103 and 20,709

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103 : 20,709 = 20,709 : x
2. Step 2: Convert to fraction form
   10,103/20,709 = 20,709/x
3. Step 3: Cross multiply
   10,103x = 20,709 × 20,709
4. Step 4: Simplify right side
   10,103x = 428,862,681
5. Step 5: Solve for x
   x = 428,862,681/10,103
6. Step 6: Final answer
   x = 42,449.04