Finding the Third Proportional to 1,217,856 and 1,855,508

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,856 : 1,855,508 = 1,855,508 : x
2. Step 2: Convert to fraction form
   1,217,856/1,855,508 = 1,855,508/x
3. Step 3: Cross multiply
   1,217,856x = 1,855,508 × 1,855,508
4. Step 4: Simplify right side
   1,217,856x = 3,442,909,938,064
5. Step 5: Solve for x
   x = 3,442,909,938,064/1,217,856
6. Step 6: Final answer
   x = 2,827,025.48