Finding the Third Proportional to 16,145 and 21,653.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,145 : 21,653.50 = 21,653.50 : x
2. Step 2: Convert to fraction form
   16,145/21,653.50 = 21,653.50/x
3. Step 3: Cross multiply
   16,145x = 21,653.50 × 21,653.50
4. Step 4: Simplify right side
   16,145x = 468,874,062.25
5. Step 5: Solve for x
   x = 468,874,062.25/16,145
6. Step 6: Final answer
   x = 29,041.44