Finding the Third Proportional to 3,978 and 5,904

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978 : 5,904 = 5,904 : x
2. Step 2: Convert to fraction form
   3,978/5,904 = 5,904/x
3. Step 3: Cross multiply
   3,978x = 5,904 × 5,904
4. Step 4: Simplify right side
   3,978x = 34,857,216
5. Step 5: Solve for x
   x = 34,857,216/3,978
6. Step 6: Final answer
   x = 8,762.50