Finding the Third Proportional to 2,789,186 and 4,309,923

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,186 : 4,309,923 = 4,309,923 : x
2. Step 2: Convert to fraction form
   2,789,186/4,309,923 = 4,309,923/x
3. Step 3: Cross multiply
   2,789,186x = 4,309,923 × 4,309,923
4. Step 4: Simplify right side
   2,789,186x = 18,575,436,265,929
5. Step 5: Solve for x
   x = 18,575,436,265,929/2,789,186
6. Step 6: Final answer
   x = 6,659,805.50