Finding the Third Proportional to 813,960 and 1,245,144

Step by Step Solution

1. Step 1: Write the proportion equation
   813,960 : 1,245,144 = 1,245,144 : x
2. Step 2: Convert to fraction form
   813,960/1,245,144 = 1,245,144/x
3. Step 3: Cross multiply
   813,960x = 1,245,144 × 1,245,144
4. Step 4: Simplify right side
   813,960x = 1,550,383,580,736
5. Step 5: Solve for x
   x = 1,550,383,580,736/813,960
6. Step 6: Final answer
   x = 1,904,741.73