Finding the Third Proportional to 67,613 and 144,605

Step by Step Solution

1. Step 1: Write the proportion equation
   67,613 : 144,605 = 144,605 : x
2. Step 2: Convert to fraction form
   67,613/144,605 = 144,605/x
3. Step 3: Cross multiply
   67,613x = 144,605 × 144,605
4. Step 4: Simplify right side
   67,613x = 20,910,606,025
5. Step 5: Solve for x
   x = 20,910,606,025/67,613
6. Step 6: Final answer
   x = 309,269.02