Finding the Third Proportional to 5,151 and 10,170

Step by Step Solution

1. Step 1: Write the proportion equation
   5,151 : 10,170 = 10,170 : x
2. Step 2: Convert to fraction form
   5,151/10,170 = 10,170/x
3. Step 3: Cross multiply
   5,151x = 10,170 × 10,170
4. Step 4: Simplify right side
   5,151x = 103,428,900
5. Step 5: Solve for x
   x = 103,428,900/5,151
6. Step 6: Final answer
   x = 20,079.38