Finding the Third Proportional to 142,478 and 304,028

Step by Step Solution

1. Step 1: Write the proportion equation
   142,478 : 304,028 = 304,028 : x
2. Step 2: Convert to fraction form
   142,478/304,028 = 304,028/x
3. Step 3: Cross multiply
   142,478x = 304,028 × 304,028
4. Step 4: Simplify right side
   142,478x = 92,433,024,784
5. Step 5: Solve for x
   x = 92,433,024,784/142,478
6. Step 6: Final answer
   x = 648,752.96