Finding the Third Proportional to 1,278,252 and 2,785,311

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,252 : 2,785,311 = 2,785,311 : x
2. Step 2: Convert to fraction form
   1,278,252/2,785,311 = 2,785,311/x
3. Step 3: Cross multiply
   1,278,252x = 2,785,311 × 2,785,311
4. Step 4: Simplify right side
   1,278,252x = 7,757,957,366,721
5. Step 5: Solve for x
   x = 7,757,957,366,721/1,278,252
6. Step 6: Final answer
   x = 6,069,192.43