Finding the Third Proportional to 5,418.56 and 7,922.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,418.56 : 7,922.81 = 7,922.81 : x
2. Step 2: Convert to fraction form
   5,418.56/7,922.81 = 7,922.81/x
3. Step 3: Cross multiply
   5,418.56x = 7,922.81 × 7,922.81
4. Step 4: Simplify right side
   5,418.56x = 62,770,957.91
5. Step 5: Solve for x
   x = 62,770,957.91/5,418.56
6. Step 6: Final answer
   x = 11,584.43