Finding the Third Proportional to 8,308 and 13,153

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308 : 13,153 = 13,153 : x
2. Step 2: Convert to fraction form
   8,308/13,153 = 13,153/x
3. Step 3: Cross multiply
   8,308x = 13,153 × 13,153
4. Step 4: Simplify right side
   8,308x = 173,001,409
5. Step 5: Solve for x
   x = 173,001,409/8,308
6. Step 6: Final answer
   x = 20,823.47