Finding the Third Proportional to 5,328.56 and 8,340.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,328.56 : 8,340.56 = 8,340.56 : x
2. Step 2: Convert to fraction form
   5,328.56/8,340.56 = 8,340.56/x
3. Step 3: Cross multiply
   5,328.56x = 8,340.56 × 8,340.56
4. Step 4: Simplify right side
   5,328.56x = 69,564,982.82
5. Step 5: Solve for x
   x = 69,564,982.82/5,328.56
6. Step 6: Final answer
   x = 13,055.11