Finding the Third Proportional to 2,165,805 and 4,384,179

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165,805 : 4,384,179 = 4,384,179 : x
2. Step 2: Convert to fraction form
   2,165,805/4,384,179 = 4,384,179/x
3. Step 3: Cross multiply
   2,165,805x = 4,384,179 × 4,384,179
4. Step 4: Simplify right side
   2,165,805x = 19,221,025,504,041
5. Step 5: Solve for x
   x = 19,221,025,504,041/2,165,805
6. Step 6: Final answer
   x = 8,874,771.97