Finding the Third Proportional to 1,002,764 and 2,188,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,764 : 2,188,456 = 2,188,456 : x
2. Step 2: Convert to fraction form
   1,002,764/2,188,456 = 2,188,456/x
3. Step 3: Cross multiply
   1,002,764x = 2,188,456 × 2,188,456
4. Step 4: Simplify right side
   1,002,764x = 4,789,339,663,936
5. Step 5: Solve for x
   x = 4,789,339,663,936/1,002,764
6. Step 6: Final answer
   x = 4,776,138.42