Finding the Third Proportional to 7,755.75 and 10,980.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,755.75 : 10,980.56 = 10,980.56 : x
2. Step 2: Convert to fraction form
   7,755.75/10,980.56 = 10,980.56/x
3. Step 3: Cross multiply
   7,755.75x = 10,980.56 × 10,980.56
4. Step 4: Simplify right side
   7,755.75x = 120,572,752.82
5. Step 5: Solve for x
   x = 120,572,752.82/7,755.75
6. Step 6: Final answer
   x = 15,546.24