Finding the Third Proportional to 142,293 and 303,020

Step by Step Solution

1. Step 1: Write the proportion equation
   142,293 : 303,020 = 303,020 : x
2. Step 2: Convert to fraction form
   142,293/303,020 = 303,020/x
3. Step 3: Cross multiply
   142,293x = 303,020 × 303,020
4. Step 4: Simplify right side
   142,293x = 91,821,120,400
5. Step 5: Solve for x
   x = 91,821,120,400/142,293
6. Step 6: Final answer
   x = 645,296.12