Finding the Third Proportional to 1,008.50 and 2,215

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008.50 : 2,215 = 2,215 : x
2. Step 2: Convert to fraction form
   1,008.50/2,215 = 2,215/x
3. Step 3: Cross multiply
   1,008.50x = 2,215 × 2,215
4. Step 4: Simplify right side
   1,008.50x = 4,906,225
5. Step 5: Solve for x
   x = 4,906,225/1,008.50
6. Step 6: Final answer
   x = 4,864.87