Finding the Third Proportional to 11,928 and 28,857

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928 : 28,857 = 28,857 : x
2. Step 2: Convert to fraction form
   11,928/28,857 = 28,857/x
3. Step 3: Cross multiply
   11,928x = 28,857 × 28,857
4. Step 4: Simplify right side
   11,928x = 832,726,449
5. Step 5: Solve for x
   x = 832,726,449/11,928
6. Step 6: Final answer
   x = 69,812.75