Finding the Third Proportional to 142,223 and 304,687

Step by Step Solution

1. Step 1: Write the proportion equation
   142,223 : 304,687 = 304,687 : x
2. Step 2: Convert to fraction form
   142,223/304,687 = 304,687/x
3. Step 3: Cross multiply
   142,223x = 304,687 × 304,687
4. Step 4: Simplify right side
   142,223x = 92,834,167,969
5. Step 5: Solve for x
   x = 92,834,167,969/142,223
6. Step 6: Final answer
   x = 652,736.67