Finding the Third Proportional to 8,404 and 13,154

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404 : 13,154 = 13,154 : x
2. Step 2: Convert to fraction form
   8,404/13,154 = 13,154/x
3. Step 3: Cross multiply
   8,404x = 13,154 × 13,154
4. Step 4: Simplify right side
   8,404x = 173,027,716
5. Step 5: Solve for x
   x = 173,027,716/8,404
6. Step 6: Final answer
   x = 20,588.73