Finding the Third Proportional to 1,335,681 and 3,149,907

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335,681 : 3,149,907 = 3,149,907 : x
2. Step 2: Convert to fraction form
   1,335,681/3,149,907 = 3,149,907/x
3. Step 3: Cross multiply
   1,335,681x = 3,149,907 × 3,149,907
4. Step 4: Simplify right side
   1,335,681x = 9,921,914,108,649
5. Step 5: Solve for x
   x = 9,921,914,108,649/1,335,681
6. Step 6: Final answer
   x = 7,428,356.10