Finding the Third Proportional to 2,378,923 and 3,557,991

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378,923 : 3,557,991 = 3,557,991 : x
2. Step 2: Convert to fraction form
   2,378,923/3,557,991 = 3,557,991/x
3. Step 3: Cross multiply
   2,378,923x = 3,557,991 × 3,557,991
4. Step 4: Simplify right side
   2,378,923x = 12,659,299,956,081
5. Step 5: Solve for x
   x = 12,659,299,956,081/2,378,923
6. Step 6: Final answer
   x = 5,321,441.66