Finding the Third Proportional to 8,216 and 12,632

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216 : 12,632 = 12,632 : x
2. Step 2: Convert to fraction form
   8,216/12,632 = 12,632/x
3. Step 3: Cross multiply
   8,216x = 12,632 × 12,632
4. Step 4: Simplify right side
   8,216x = 159,567,424
5. Step 5: Solve for x
   x = 159,567,424/8,216
6. Step 6: Final answer
   x = 19,421.55