Finding the Third Proportional to 7,900 and 17,015

Step by Step Solution

1. Step 1: Write the proportion equation
   7,900 : 17,015 = 17,015 : x
2. Step 2: Convert to fraction form
   7,900/17,015 = 17,015/x
3. Step 3: Cross multiply
   7,900x = 17,015 × 17,015
4. Step 4: Simplify right side
   7,900x = 289,510,225
5. Step 5: Solve for x
   x = 289,510,225/7,900
6. Step 6: Final answer
   x = 36,646.86