Finding the Third Proportional to 613,728 and 1,312,738

Step by Step Solution

1. Step 1: Write the proportion equation
   613,728 : 1,312,738 = 1,312,738 : x
2. Step 2: Convert to fraction form
   613,728/1,312,738 = 1,312,738/x
3. Step 3: Cross multiply
   613,728x = 1,312,738 × 1,312,738
4. Step 4: Simplify right side
   613,728x = 1,723,281,056,644
5. Step 5: Solve for x
   x = 1,723,281,056,644/613,728
6. Step 6: Final answer
   x = 2,807,890.56