Finding the Third Proportional to 1,002,788 and 2,188,496

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,788 : 2,188,496 = 2,188,496 : x
2. Step 2: Convert to fraction form
   1,002,788/2,188,496 = 2,188,496/x
3. Step 3: Cross multiply
   1,002,788x = 2,188,496 × 2,188,496
4. Step 4: Simplify right side
   1,002,788x = 4,789,514,742,016
5. Step 5: Solve for x
   x = 4,789,514,742,016/1,002,788
6. Step 6: Final answer
   x = 4,776,198.70