Finding the Third Proportional to 16,618.50 and 36,016.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,618.50 : 36,016.31 = 36,016.31 : x
2. Step 2: Convert to fraction form
   16,618.50/36,016.31 = 36,016.31/x
3. Step 3: Cross multiply
   16,618.50x = 36,016.31 × 36,016.31
4. Step 4: Simplify right side
   16,618.50x = 1,297,174,766.10
5. Step 5: Solve for x
   x = 1,297,174,766.10/16,618.50
6. Step 6: Final answer
   x = 78,056.07