Finding the Third Proportional to 658,716 and 1,340,712

Step by Step Solution

1. Step 1: Write the proportion equation
   658,716 : 1,340,712 = 1,340,712 : x
2. Step 2: Convert to fraction form
   658,716/1,340,712 = 1,340,712/x
3. Step 3: Cross multiply
   658,716x = 1,340,712 × 1,340,712
4. Step 4: Simplify right side
   658,716x = 1,797,508,666,944
5. Step 5: Solve for x
   x = 1,797,508,666,944/658,716
6. Step 6: Final answer
   x = 2,728,806.75