Finding the Third Proportional to 143,900 and 308,944

Step by Step Solution

1. Step 1: Write the proportion equation
   143,900 : 308,944 = 308,944 : x
2. Step 2: Convert to fraction form
   143,900/308,944 = 308,944/x
3. Step 3: Cross multiply
   143,900x = 308,944 × 308,944
4. Step 4: Simplify right side
   143,900x = 95,446,395,136
5. Step 5: Solve for x
   x = 95,446,395,136/143,900
6. Step 6: Final answer
   x = 663,282.80