Finding the Third Proportional to 7,728.75 and 16,915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,728.75 : 16,915.50 = 16,915.50 : x
2. Step 2: Convert to fraction form
   7,728.75/16,915.50 = 16,915.50/x
3. Step 3: Cross multiply
   7,728.75x = 16,915.50 × 16,915.50
4. Step 4: Simplify right side
   7,728.75x = 286,134,140.25
5. Step 5: Solve for x
   x = 286,134,140.25/7,728.75
6. Step 6: Final answer
   x = 37,022.05