Finding the Third Proportional to 61,668 and 131,760

Step by Step Solution

1. Step 1: Write the proportion equation
   61,668 : 131,760 = 131,760 : x
2. Step 2: Convert to fraction form
   61,668/131,760 = 131,760/x
3. Step 3: Cross multiply
   61,668x = 131,760 × 131,760
4. Step 4: Simplify right side
   61,668x = 17,360,697,600
5. Step 5: Solve for x
   x = 17,360,697,600/61,668
6. Step 6: Final answer
   x = 281,518.74