Finding the Third Proportional to 8,307 and 10,170

Step by Step Solution

1. Step 1: Write the proportion equation
   8,307 : 10,170 = 10,170 : x
2. Step 2: Convert to fraction form
   8,307/10,170 = 10,170/x
3. Step 3: Cross multiply
   8,307x = 10,170 × 10,170
4. Step 4: Simplify right side
   8,307x = 103,428,900
5. Step 5: Solve for x
   x = 103,428,900/8,307
6. Step 6: Final answer
   x = 12,450.81