Finding the Third Proportional to 3,972.48 and 7,765.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,972.48 : 7,765.56 = 7,765.56 : x
2. Step 2: Convert to fraction form
   3,972.48/7,765.56 = 7,765.56/x
3. Step 3: Cross multiply
   3,972.48x = 7,765.56 × 7,765.56
4. Step 4: Simplify right side
   3,972.48x = 60,303,900.27
5. Step 5: Solve for x
   x = 60,303,900.27/3,972.48
6. Step 6: Final answer
   x = 15,180.41