Finding the Third Proportional to 905,067 and 1,990,926

Step by Step Solution

1. Step 1: Write the proportion equation
   905,067 : 1,990,926 = 1,990,926 : x
2. Step 2: Convert to fraction form
   905,067/1,990,926 = 1,990,926/x
3. Step 3: Cross multiply
   905,067x = 1,990,926 × 1,990,926
4. Step 4: Simplify right side
   905,067x = 3,963,786,337,476
5. Step 5: Solve for x
   x = 3,963,786,337,476/905,067
6. Step 6: Final answer
   x = 4,379,550.17