Finding the Third Proportional to 1,209,110 and 2,639,800

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,110 : 2,639,800 = 2,639,800 : x
2. Step 2: Convert to fraction form
   1,209,110/2,639,800 = 2,639,800/x
3. Step 3: Cross multiply
   1,209,110x = 2,639,800 × 2,639,800
4. Step 4: Simplify right side
   1,209,110x = 6,968,544,040,000
5. Step 5: Solve for x
   x = 6,968,544,040,000/1,209,110
6. Step 6: Final answer
   x = 5,763,366.48