Finding the Third Proportional to 7,660.69 and 10,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,660.69 : 10,840.50 = 10,840.50 : x
2. Step 2: Convert to fraction form
   7,660.69/10,840.50 = 10,840.50/x
3. Step 3: Cross multiply
   7,660.69x = 10,840.50 × 10,840.50
4. Step 4: Simplify right side
   7,660.69x = 117,516,440.25
5. Step 5: Solve for x
   x = 117,516,440.25/7,660.69
6. Step 6: Final answer
   x = 15,340.20