Finding the Third Proportional to 142,949 and 304,385

Step by Step Solution

1. Step 1: Write the proportion equation
   142,949 : 304,385 = 304,385 : x
2. Step 2: Convert to fraction form
   142,949/304,385 = 304,385/x
3. Step 3: Cross multiply
   142,949x = 304,385 × 304,385
4. Step 4: Simplify right side
   142,949x = 92,650,228,225
5. Step 5: Solve for x
   x = 92,650,228,225/142,949
6. Step 6: Final answer
   x = 648,134.85