Finding the Third Proportional to 1,065,854 and 2,289,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,854 : 2,289,820 = 2,289,820 : x
2. Step 2: Convert to fraction form
   1,065,854/2,289,820 = 2,289,820/x
3. Step 3: Cross multiply
   1,065,854x = 2,289,820 × 2,289,820
4. Step 4: Simplify right side
   1,065,854x = 5,243,275,632,400
5. Step 5: Solve for x
   x = 5,243,275,632,400/1,065,854
6. Step 6: Final answer
   x = 4,919,318.81