Finding the Third Proportional to 1,139,908 and 1,778,874

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,908 : 1,778,874 = 1,778,874 : x
2. Step 2: Convert to fraction form
   1,139,908/1,778,874 = 1,778,874/x
3. Step 3: Cross multiply
   1,139,908x = 1,778,874 × 1,778,874
4. Step 4: Simplify right side
   1,139,908x = 3,164,392,707,876
5. Step 5: Solve for x
   x = 3,164,392,707,876/1,139,908
6. Step 6: Final answer
   x = 2,776,007.11