Finding the Third Proportional to 16,169.63 and 21,728.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,169.63 : 21,728.25 = 21,728.25 : x
2. Step 2: Convert to fraction form
   16,169.63/21,728.25 = 21,728.25/x
3. Step 3: Cross multiply
   16,169.63x = 21,728.25 × 21,728.25
4. Step 4: Simplify right side
   16,169.63x = 472,116,848.06
5. Step 5: Solve for x
   x = 472,116,848.06/16,169.63
6. Step 6: Final answer
   x = 29,197.76