Finding the Third Proportional to 658,712 and 1,340,704

Step by Step Solution

1. Step 1: Write the proportion equation
   658,712 : 1,340,704 = 1,340,704 : x
2. Step 2: Convert to fraction form
   658,712/1,340,704 = 1,340,704/x
3. Step 3: Cross multiply
   658,712x = 1,340,704 × 1,340,704
4. Step 4: Simplify right side
   658,712x = 1,797,487,215,616
5. Step 5: Solve for x
   x = 1,797,487,215,616/658,712
6. Step 6: Final answer
   x = 2,728,790.75