Finding the Third Proportional to 488,950 and 778,016

Step by Step Solution

1. Step 1: Write the proportion equation
   488,950 : 778,016 = 778,016 : x
2. Step 2: Convert to fraction form
   488,950/778,016 = 778,016/x
3. Step 3: Cross multiply
   488,950x = 778,016 × 778,016
4. Step 4: Simplify right side
   488,950x = 605,308,896,256
5. Step 5: Solve for x
   x = 605,308,896,256/488,950
6. Step 6: Final answer
   x = 1,237,977.09