Finding the Third Proportional to 679,566 and 1,079,616

Step by Step Solution

1. Step 1: Write the proportion equation
   679,566 : 1,079,616 = 1,079,616 : x
2. Step 2: Convert to fraction form
   679,566/1,079,616 = 1,079,616/x
3. Step 3: Cross multiply
   679,566x = 1,079,616 × 1,079,616
4. Step 4: Simplify right side
   679,566x = 1,165,570,707,456
5. Step 5: Solve for x
   x = 1,165,570,707,456/679,566
6. Step 6: Final answer
   x = 1,715,169.25