Finding the Third Proportional to 2,656,920 and 4,229,760

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656,920 : 4,229,760 = 4,229,760 : x
2. Step 2: Convert to fraction form
   2,656,920/4,229,760 = 4,229,760/x
3. Step 3: Cross multiply
   2,656,920x = 4,229,760 × 4,229,760
4. Step 4: Simplify right side
   2,656,920x = 17,890,869,657,600
5. Step 5: Solve for x
   x = 17,890,869,657,600/2,656,920
6. Step 6: Final answer
   x = 6,733,687.75