Finding the Third Proportional to 225,144.56 and 342,361.69

Step by Step Solution

1. Step 1: Write the proportion equation
   225,144.56 : 342,361.69 = 342,361.69 : x
2. Step 2: Convert to fraction form
   225,144.56/342,361.69 = 342,361.69/x
3. Step 3: Cross multiply
   225,144.56x = 342,361.69 × 342,361.69
4. Step 4: Simplify right side
   225,144.56x = 117,211,525,067.85
5. Step 5: Solve for x
   x = 117,211,525,067.85/225,144.56
6. Step 6: Final answer
   x = 520,605.62