Finding the Third Proportional to 2,140,404 and 3,139,649

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,404 : 3,139,649 = 3,139,649 : x
2. Step 2: Convert to fraction form
   2,140,404/3,139,649 = 3,139,649/x
3. Step 3: Cross multiply
   2,140,404x = 3,139,649 × 3,139,649
4. Step 4: Simplify right side
   2,140,404x = 9,857,395,843,201
5. Step 5: Solve for x
   x = 9,857,395,843,201/2,140,404
6. Step 6: Final answer
   x = 4,605,390.31