Finding the Third Proportional to 15,600 and 37,728

Step by Step Solution

1. Step 1: Write the proportion equation
   15,600 : 37,728 = 37,728 : x
2. Step 2: Convert to fraction form
   15,600/37,728 = 37,728/x
3. Step 3: Cross multiply
   15,600x = 37,728 × 37,728
4. Step 4: Simplify right side
   15,600x = 1,423,401,984
5. Step 5: Solve for x
   x = 1,423,401,984/15,600
6. Step 6: Final answer
   x = 91,243.72