Finding the Third Proportional to 1,217,792 and 1,855,398

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,792 : 1,855,398 = 1,855,398 : x
2. Step 2: Convert to fraction form
   1,217,792/1,855,398 = 1,855,398/x
3. Step 3: Cross multiply
   1,217,792x = 1,855,398 × 1,855,398
4. Step 4: Simplify right side
   1,217,792x = 3,442,501,738,404
5. Step 5: Solve for x
   x = 3,442,501,738,404/1,217,792
6. Step 6: Final answer
   x = 2,826,838.85