Finding the Third Proportional to 1,723,920 and 2,728,404

Step by Step Solution

1. Step 1: Write the proportion equation
   1,723,920 : 2,728,404 = 2,728,404 : x
2. Step 2: Convert to fraction form
   1,723,920/2,728,404 = 2,728,404/x
3. Step 3: Cross multiply
   1,723,920x = 2,728,404 × 2,728,404
4. Step 4: Simplify right side
   1,723,920x = 7,444,188,387,216
5. Step 5: Solve for x
   x = 7,444,188,387,216/1,723,920
6. Step 6: Final answer
   x = 4,318,175.08