Finding the Third Proportional to 16,409.25 and 21,920.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,409.25 : 21,920.63 = 21,920.63 : x
2. Step 2: Convert to fraction form
   16,409.25/21,920.63 = 21,920.63/x
3. Step 3: Cross multiply
   16,409.25x = 21,920.63 × 21,920.63
4. Step 4: Simplify right side
   16,409.25x = 480,513,800.39
5. Step 5: Solve for x
   x = 480,513,800.39/16,409.25
6. Step 6: Final answer
   x = 29,283.11