Finding the Third Proportional to 142,942 and 304,878

Step by Step Solution

1. Step 1: Write the proportion equation
   142,942 : 304,878 = 304,878 : x
2. Step 2: Convert to fraction form
   142,942/304,878 = 304,878/x
3. Step 3: Cross multiply
   142,942x = 304,878 × 304,878
4. Step 4: Simplify right side
   142,942x = 92,950,594,884
5. Step 5: Solve for x
   x = 92,950,594,884/142,942
6. Step 6: Final answer
   x = 650,267.91