Finding the Third Proportional to 1,283,664 and 2,781,378

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,664 : 2,781,378 = 2,781,378 : x
2. Step 2: Convert to fraction form
   1,283,664/2,781,378 = 2,781,378/x
3. Step 3: Cross multiply
   1,283,664x = 2,781,378 × 2,781,378
4. Step 4: Simplify right side
   1,283,664x = 7,736,063,578,884
5. Step 5: Solve for x
   x = 7,736,063,578,884/1,283,664
6. Step 6: Final answer
   x = 6,026,548.68