Finding the Third Proportional to 6,424.31 and 12,664.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,424.31 : 12,664.69 = 12,664.69 : x
2. Step 2: Convert to fraction form
   6,424.31/12,664.69 = 12,664.69/x
3. Step 3: Cross multiply
   6,424.31x = 12,664.69 × 12,664.69
4. Step 4: Simplify right side
   6,424.31x = 160,394,309.47
5. Step 5: Solve for x
   x = 160,394,309.47/6,424.31
6. Step 6: Final answer
   x = 24,966.77