Finding the Third Proportional to 3,452,198 and 5,178,298

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452,198 : 5,178,298 = 5,178,298 : x
2. Step 2: Convert to fraction form
   3,452,198/5,178,298 = 5,178,298/x
3. Step 3: Cross multiply
   3,452,198x = 5,178,298 × 5,178,298
4. Step 4: Simplify right side
   3,452,198x = 26,814,770,176,804
5. Step 5: Solve for x
   x = 26,814,770,176,804/3,452,198
6. Step 6: Final answer
   x = 7,767,448.50