Finding the Third Proportional to 16,145.25 and 21,696.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,145.25 : 21,696.75 = 21,696.75 : x
2. Step 2: Convert to fraction form
   16,145.25/21,696.75 = 21,696.75/x
3. Step 3: Cross multiply
   16,145.25x = 21,696.75 × 21,696.75
4. Step 4: Simplify right side
   16,145.25x = 470,748,960.56
5. Step 5: Solve for x
   x = 470,748,960.56/16,145.25
6. Step 6: Final answer
   x = 29,157.12