Finding the Third Proportional to 1,267,569 and 2,639,979

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,569 : 2,639,979 = 2,639,979 : x
2. Step 2: Convert to fraction form
   1,267,569/2,639,979 = 2,639,979/x
3. Step 3: Cross multiply
   1,267,569x = 2,639,979 × 2,639,979
4. Step 4: Simplify right side
   1,267,569x = 6,969,489,120,441
5. Step 5: Solve for x
   x = 6,969,489,120,441/1,267,569
6. Step 6: Final answer
   x = 5,498,311.43