Finding the Third Proportional to 6,392 and 12,904

Step by Step Solution

1. Step 1: Write the proportion equation
   6,392 : 12,904 = 12,904 : x
2. Step 2: Convert to fraction form
   6,392/12,904 = 12,904/x
3. Step 3: Cross multiply
   6,392x = 12,904 × 12,904
4. Step 4: Simplify right side
   6,392x = 166,513,216
5. Step 5: Solve for x
   x = 166,513,216/6,392
6. Step 6: Final answer
   x = 26,050.25