Finding the Third Proportional to 1,056,780 and 2,606,238

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056,780 : 2,606,238 = 2,606,238 : x
2. Step 2: Convert to fraction form
   1,056,780/2,606,238 = 2,606,238/x
3. Step 3: Cross multiply
   1,056,780x = 2,606,238 × 2,606,238
4. Step 4: Simplify right side
   1,056,780x = 6,792,476,512,644
5. Step 5: Solve for x
   x = 6,792,476,512,644/1,056,780
6. Step 6: Final answer
   x = 6,427,521.82