Finding the Third Proportional to 2,709,839 and 4,200,907

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709,839 : 4,200,907 = 4,200,907 : x
2. Step 2: Convert to fraction form
   2,709,839/4,200,907 = 4,200,907/x
3. Step 3: Cross multiply
   2,709,839x = 4,200,907 × 4,200,907
4. Step 4: Simplify right side
   2,709,839x = 17,647,619,622,649
5. Step 5: Solve for x
   x = 17,647,619,622,649/2,709,839
6. Step 6: Final answer
   x = 6,512,423.66