Finding the Third Proportional to 3,870 and 7,946

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870 : 7,946 = 7,946 : x
2. Step 2: Convert to fraction form
   3,870/7,946 = 7,946/x
3. Step 3: Cross multiply
   3,870x = 7,946 × 7,946
4. Step 4: Simplify right side
   3,870x = 63,138,916
5. Step 5: Solve for x
   x = 63,138,916/3,870
6. Step 6: Final answer
   x = 16,314.97