Finding the Third Proportional to 2,690,849 and 4,170,774

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,849 : 4,170,774 = 4,170,774 : x
2. Step 2: Convert to fraction form
   2,690,849/4,170,774 = 4,170,774/x
3. Step 3: Cross multiply
   2,690,849x = 4,170,774 × 4,170,774
4. Step 4: Simplify right side
   2,690,849x = 17,395,355,759,076
5. Step 5: Solve for x
   x = 17,395,355,759,076/2,690,849
6. Step 6: Final answer
   x = 6,464,634.68