Finding the Third Proportional to 1,077,405 and 1,668,218

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,405 : 1,668,218 = 1,668,218 : x
2. Step 2: Convert to fraction form
   1,077,405/1,668,218 = 1,668,218/x
3. Step 3: Cross multiply
   1,077,405x = 1,668,218 × 1,668,218
4. Step 4: Simplify right side
   1,077,405x = 2,782,951,295,524
5. Step 5: Solve for x
   x = 2,782,951,295,524/1,077,405
6. Step 6: Final answer
   x = 2,583,013.16