Finding the Third Proportional to 7,220.25 and 10,800.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,220.25 : 10,800.56 = 10,800.56 : x
2. Step 2: Convert to fraction form
   7,220.25/10,800.56 = 10,800.56/x
3. Step 3: Cross multiply
   7,220.25x = 10,800.56 × 10,800.56
4. Step 4: Simplify right side
   7,220.25x = 116,652,150.32
5. Step 5: Solve for x
   x = 116,652,150.32/7,220.25
6. Step 6: Final answer
   x = 16,156.25