Finding the Third Proportional to 1,201,637 and 1,855,443

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201,637 : 1,855,443 = 1,855,443 : x
2. Step 2: Convert to fraction form
   1,201,637/1,855,443 = 1,855,443/x
3. Step 3: Cross multiply
   1,201,637x = 1,855,443 × 1,855,443
4. Step 4: Simplify right side
   1,201,637x = 3,442,668,726,249
5. Step 5: Solve for x
   x = 3,442,668,726,249/1,201,637
6. Step 6: Final answer
   x = 2,864,982.29