Finding the Third Proportional to 3,924 and 10,386

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924 : 10,386 = 10,386 : x
2. Step 2: Convert to fraction form
   3,924/10,386 = 10,386/x
3. Step 3: Cross multiply
   3,924x = 10,386 × 10,386
4. Step 4: Simplify right side
   3,924x = 107,868,996
5. Step 5: Solve for x
   x = 107,868,996/3,924
6. Step 6: Final answer
   x = 27,489.55