Finding the Third Proportional to 2,005,290 and 4,175,811

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005,290 : 4,175,811 = 4,175,811 : x
2. Step 2: Convert to fraction form
   2,005,290/4,175,811 = 4,175,811/x
3. Step 3: Cross multiply
   2,005,290x = 4,175,811 × 4,175,811
4. Step 4: Simplify right side
   2,005,290x = 17,437,397,507,721
5. Step 5: Solve for x
   x = 17,437,397,507,721/2,005,290
6. Step 6: Final answer
   x = 8,695,698.63