Finding the Third Proportional to 65,776.50 and 144,675

Step by Step Solution

1. Step 1: Write the proportion equation
   65,776.50 : 144,675 = 144,675 : x
2. Step 2: Convert to fraction form
   65,776.50/144,675 = 144,675/x
3. Step 3: Cross multiply
   65,776.50x = 144,675 × 144,675
4. Step 4: Simplify right side
   65,776.50x = 20,930,855,625
5. Step 5: Solve for x
   x = 20,930,855,625/65,776.50
6. Step 6: Final answer
   x = 318,211.76