Finding the Third Proportional to 65,772 and 144,666

Step by Step Solution

1. Step 1: Write the proportion equation
   65,772 : 144,666 = 144,666 : x
2. Step 2: Convert to fraction form
   65,772/144,666 = 144,666/x
3. Step 3: Cross multiply
   65,772x = 144,666 × 144,666
4. Step 4: Simplify right side
   65,772x = 20,928,251,556
5. Step 5: Solve for x
   x = 20,928,251,556/65,772
6. Step 6: Final answer
   x = 318,193.94