Finding the Third Proportional to 12,656 and 19,040

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656 : 19,040 = 19,040 : x
2. Step 2: Convert to fraction form
   12,656/19,040 = 19,040/x
3. Step 3: Cross multiply
   12,656x = 19,040 × 19,040
4. Step 4: Simplify right side
   12,656x = 362,521,600
5. Step 5: Solve for x
   x = 362,521,600/12,656
6. Step 6: Final answer
   x = 28,644.25