Finding the Third Proportional to 1,002,756 and 2,188,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,756 : 2,188,440 = 2,188,440 : x
2. Step 2: Convert to fraction form
   1,002,756/2,188,440 = 2,188,440/x
3. Step 3: Cross multiply
   1,002,756x = 2,188,440 × 2,188,440
4. Step 4: Simplify right side
   1,002,756x = 4,789,269,633,600
5. Step 5: Solve for x
   x = 4,789,269,633,600/1,002,756
6. Step 6: Final answer
   x = 4,776,106.68