Finding the Third Proportional to 451,856 and 978,104

Step by Step Solution

1. Step 1: Write the proportion equation
   451,856 : 978,104 = 978,104 : x
2. Step 2: Convert to fraction form
   451,856/978,104 = 978,104/x
3. Step 3: Cross multiply
   451,856x = 978,104 × 978,104
4. Step 4: Simplify right side
   451,856x = 956,687,434,816
5. Step 5: Solve for x
   x = 956,687,434,816/451,856
6. Step 6: Final answer
   x = 2,117,239.64