Finding the Third Proportional to 2,036,421 and 4,021,443

Step by Step Solution

1. Step 1: Write the proportion equation
   2,036,421 : 4,021,443 = 4,021,443 : x
2. Step 2: Convert to fraction form
   2,036,421/4,021,443 = 4,021,443/x
3. Step 3: Cross multiply
   2,036,421x = 4,021,443 × 4,021,443
4. Step 4: Simplify right side
   2,036,421x = 16,172,003,802,249
5. Step 5: Solve for x
   x = 16,172,003,802,249/2,036,421
6. Step 6: Final answer
   x = 7,941,385.30