Finding the Third Proportional to 613,697 and 1,312,687

Step by Step Solution

1. Step 1: Write the proportion equation
   613,697 : 1,312,687 = 1,312,687 : x
2. Step 2: Convert to fraction form
   613,697/1,312,687 = 1,312,687/x
3. Step 3: Cross multiply
   613,697x = 1,312,687 × 1,312,687
4. Step 4: Simplify right side
   613,697x = 1,723,147,159,969
5. Step 5: Solve for x
   x = 1,723,147,159,969/613,697
6. Step 6: Final answer
   x = 2,807,814.21