Finding the Third Proportional to 388,078 and 848,298

Step by Step Solution

1. Step 1: Write the proportion equation
   388,078 : 848,298 = 848,298 : x
2. Step 2: Convert to fraction form
   388,078/848,298 = 848,298/x
3. Step 3: Cross multiply
   388,078x = 848,298 × 848,298
4. Step 4: Simplify right side
   388,078x = 719,609,496,804
5. Step 5: Solve for x
   x = 719,609,496,804/388,078
6. Step 6: Final answer
   x = 1,854,290.88