Finding the Third Proportional to 16,206 and 21,539.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,206 : 21,539.25 = 21,539.25 : x
2. Step 2: Convert to fraction form
   16,206/21,539.25 = 21,539.25/x
3. Step 3: Cross multiply
   16,206x = 21,539.25 × 21,539.25
4. Step 4: Simplify right side
   16,206x = 463,939,290.56
5. Step 5: Solve for x
   x = 463,939,290.56/16,206
6. Step 6: Final answer
   x = 28,627.62