Finding the Third Proportional to 7,012.50 and 10,857

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.50 : 10,857 = 10,857 : x
2. Step 2: Convert to fraction form
   7,012.50/10,857 = 10,857/x
3. Step 3: Cross multiply
   7,012.50x = 10,857 × 10,857
4. Step 4: Simplify right side
   7,012.50x = 117,874,449
5. Step 5: Solve for x
   x = 117,874,449/7,012.50
6. Step 6: Final answer
   x = 16,809.19