Finding the Third Proportional to 16,816.50 and 36,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,816.50 : 36,580.50 = 36,580.50 : x
2. Step 2: Convert to fraction form
   16,816.50/36,580.50 = 36,580.50/x
3. Step 3: Cross multiply
   16,816.50x = 36,580.50 × 36,580.50
4. Step 4: Simplify right side
   16,816.50x = 1,338,132,980.25
5. Step 5: Solve for x
   x = 1,338,132,980.25/16,816.50
6. Step 6: Final answer
   x = 79,572.62