Finding the Third Proportional to 2,100,716 and 4,581,648

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,716 : 4,581,648 = 4,581,648 : x
2. Step 2: Convert to fraction form
   2,100,716/4,581,648 = 4,581,648/x
3. Step 3: Cross multiply
   2,100,716x = 4,581,648 × 4,581,648
4. Step 4: Simplify right side
   2,100,716x = 20,991,498,395,904
5. Step 5: Solve for x
   x = 20,991,498,395,904/2,100,716
6. Step 6: Final answer
   x = 9,992,544.64