Finding the Third Proportional to 66,568.50 and 144,892

Step by Step Solution

1. Step 1: Write the proportion equation
   66,568.50 : 144,892 = 144,892 : x
2. Step 2: Convert to fraction form
   66,568.50/144,892 = 144,892/x
3. Step 3: Cross multiply
   66,568.50x = 144,892 × 144,892
4. Step 4: Simplify right side
   66,568.50x = 20,993,691,664
5. Step 5: Solve for x
   x = 20,993,691,664/66,568.50
6. Step 6: Final answer
   x = 315,369.76