Finding the Third Proportional to 9,215 and 13,850

Step by Step Solution

1. Step 1: Write the proportion equation
   9,215 : 13,850 = 13,850 : x
2. Step 2: Convert to fraction form
   9,215/13,850 = 13,850/x
3. Step 3: Cross multiply
   9,215x = 13,850 × 13,850
4. Step 4: Simplify right side
   9,215x = 191,822,500
5. Step 5: Solve for x
   x = 191,822,500/9,215
6. Step 6: Final answer
   x = 20,816.33