Finding the Third Proportional to 142,089 and 303,876

Step by Step Solution

1. Step 1: Write the proportion equation
   142,089 : 303,876 = 303,876 : x
2. Step 2: Convert to fraction form
   142,089/303,876 = 303,876/x
3. Step 3: Cross multiply
   142,089x = 303,876 × 303,876
4. Step 4: Simplify right side
   142,089x = 92,340,623,376
5. Step 5: Solve for x
   x = 92,340,623,376/142,089
6. Step 6: Final answer
   x = 649,878.76