Finding the Third Proportional to 140,530 and 304,388

Step by Step Solution

1. Step 1: Write the proportion equation
   140,530 : 304,388 = 304,388 : x
2. Step 2: Convert to fraction form
   140,530/304,388 = 304,388/x
3. Step 3: Cross multiply
   140,530x = 304,388 × 304,388
4. Step 4: Simplify right side
   140,530x = 92,652,054,544
5. Step 5: Solve for x
   x = 92,652,054,544/140,530
6. Step 6: Final answer
   x = 659,304.45