Finding the Third Proportional to 12,648 and 19,651

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648 : 19,651 = 19,651 : x
2. Step 2: Convert to fraction form
   12,648/19,651 = 19,651/x
3. Step 3: Cross multiply
   12,648x = 19,651 × 19,651
4. Step 4: Simplify right side
   12,648x = 386,161,801
5. Step 5: Solve for x
   x = 386,161,801/12,648
6. Step 6: Final answer
   x = 30,531.45