Finding the Third Proportional to 451,988 and 613,856

Step by Step Solution

1. Step 1: Write the proportion equation
   451,988 : 613,856 = 613,856 : x
2. Step 2: Convert to fraction form
   451,988/613,856 = 613,856/x
3. Step 3: Cross multiply
   451,988x = 613,856 × 613,856
4. Step 4: Simplify right side
   451,988x = 376,819,188,736
5. Step 5: Solve for x
   x = 376,819,188,736/451,988
6. Step 6: Final answer
   x = 833,692.90