Finding the Third Proportional to 65,719.50 and 143,601

Step by Step Solution

1. Step 1: Write the proportion equation
   65,719.50 : 143,601 = 143,601 : x
2. Step 2: Convert to fraction form
   65,719.50/143,601 = 143,601/x
3. Step 3: Cross multiply
   65,719.50x = 143,601 × 143,601
4. Step 4: Simplify right side
   65,719.50x = 20,621,247,201
5. Step 5: Solve for x
   x = 20,621,247,201/65,719.50
6. Step 6: Final answer
   x = 313,776.69