Finding the Third Proportional to 10,107 and 20,700

Step by Step Solution

1. Step 1: Write the proportion equation
   10,107 : 20,700 = 20,700 : x
2. Step 2: Convert to fraction form
   10,107/20,700 = 20,700/x
3. Step 3: Cross multiply
   10,107x = 20,700 × 20,700
4. Step 4: Simplify right side
   10,107x = 428,490,000
5. Step 5: Solve for x
   x = 428,490,000/10,107
6. Step 6: Final answer
   x = 42,395.37