Finding the Third Proportional to 9,928 and 10,864

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928 : 10,864 = 10,864 : x
2. Step 2: Convert to fraction form
   9,928/10,864 = 10,864/x
3. Step 3: Cross multiply
   9,928x = 10,864 × 10,864
4. Step 4: Simplify right side
   9,928x = 118,026,496
5. Step 5: Solve for x
   x = 118,026,496/9,928
6. Step 6: Final answer
   x = 11,888.24