Finding the Third Proportional to 12,261.38 and 16,410.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,261.38 : 16,410.09 = 16,410.09 : x
2. Step 2: Convert to fraction form
   12,261.38/16,410.09 = 16,410.09/x
3. Step 3: Cross multiply
   12,261.38x = 16,410.09 × 16,410.09
4. Step 4: Simplify right side
   12,261.38x = 269,291,176.88
5. Step 5: Solve for x
   x = 269,291,176.88/12,261.38
6. Step 6: Final answer
   x = 21,962.56