Finding the Third Proportional to 613,720 and 1,312,736

Step by Step Solution

1. Step 1: Write the proportion equation
   613,720 : 1,312,736 = 1,312,736 : x
2. Step 2: Convert to fraction form
   613,720/1,312,736 = 1,312,736/x
3. Step 3: Cross multiply
   613,720x = 1,312,736 × 1,312,736
4. Step 4: Simplify right side
   613,720x = 1,723,275,805,696
5. Step 5: Solve for x
   x = 1,723,275,805,696/613,720
6. Step 6: Final answer
   x = 2,807,918.60