Finding the Third Proportional to 143,800 and 302,504

Step by Step Solution

1. Step 1: Write the proportion equation
   143,800 : 302,504 = 302,504 : x
2. Step 2: Convert to fraction form
   143,800/302,504 = 302,504/x
3. Step 3: Cross multiply
   143,800x = 302,504 × 302,504
4. Step 4: Simplify right side
   143,800x = 91,508,670,016
5. Step 5: Solve for x
   x = 91,508,670,016/143,800
6. Step 6: Final answer
   x = 636,360.71