Finding the Third Proportional to 1,649,405 and 2,553,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,649,405 : 2,553,920 = 2,553,920 : x
2. Step 2: Convert to fraction form
   1,649,405/2,553,920 = 2,553,920/x
3. Step 3: Cross multiply
   1,649,405x = 2,553,920 × 2,553,920
4. Step 4: Simplify right side
   1,649,405x = 6,522,507,366,400
5. Step 5: Solve for x
   x = 6,522,507,366,400/1,649,405
6. Step 6: Final answer
   x = 3,954,460.77