Finding the Third Proportional to 17,185.50 and 36,405

Step by Step Solution

1. Step 1: Write the proportion equation
   17,185.50 : 36,405 = 36,405 : x
2. Step 2: Convert to fraction form
   17,185.50/36,405 = 36,405/x
3. Step 3: Cross multiply
   17,185.50x = 36,405 × 36,405
4. Step 4: Simplify right side
   17,185.50x = 1,325,324,025
5. Step 5: Solve for x
   x = 1,325,324,025/17,185.50
6. Step 6: Final answer
   x = 77,118.74