Finding the Third Proportional to 40,728 and 61,200

Step by Step Solution

1. Step 1: Write the proportion equation
   40,728 : 61,200 = 61,200 : x
2. Step 2: Convert to fraction form
   40,728/61,200 = 61,200/x
3. Step 3: Cross multiply
   40,728x = 61,200 × 61,200
4. Step 4: Simplify right side
   40,728x = 3,745,440,000
5. Step 5: Solve for x
   x = 3,745,440,000/40,728
6. Step 6: Final answer
   x = 91,962.29