Finding the Third Proportional to 142,451 and 303,970

Step by Step Solution

1. Step 1: Write the proportion equation
   142,451 : 303,970 = 303,970 : x
2. Step 2: Convert to fraction form
   142,451/303,970 = 303,970/x
3. Step 3: Cross multiply
   142,451x = 303,970 × 303,970
4. Step 4: Simplify right side
   142,451x = 92,397,760,900
5. Step 5: Solve for x
   x = 92,397,760,900/142,451
6. Step 6: Final answer
   x = 648,628.38