Finding the Third Proportional to 16,419 and 36,665.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419 : 36,665.25 = 36,665.25 : x
2. Step 2: Convert to fraction form
   16,419/36,665.25 = 36,665.25/x
3. Step 3: Cross multiply
   16,419x = 36,665.25 × 36,665.25
4. Step 4: Simplify right side
   16,419x = 1,344,340,557.56
5. Step 5: Solve for x
   x = 1,344,340,557.56/16,419
6. Step 6: Final answer
   x = 81,877.13