Finding the Third Proportional to 6,780 and 10,875

Step by Step Solution

1. Step 1: Write the proportion equation
   6,780 : 10,875 = 10,875 : x
2. Step 2: Convert to fraction form
   6,780/10,875 = 10,875/x
3. Step 3: Cross multiply
   6,780x = 10,875 × 10,875
4. Step 4: Simplify right side
   6,780x = 118,265,625
5. Step 5: Solve for x
   x = 118,265,625/6,780
6. Step 6: Final answer
   x = 17,443.31