Finding the Third Proportional to 16,640 and 32,816

Step by Step Solution

1. Step 1: Write the proportion equation
   16,640 : 32,816 = 32,816 : x
2. Step 2: Convert to fraction form
   16,640/32,816 = 32,816/x
3. Step 3: Cross multiply
   16,640x = 32,816 × 32,816
4. Step 4: Simplify right side
   16,640x = 1,076,889,856
5. Step 5: Solve for x
   x = 1,076,889,856/16,640
6. Step 6: Final answer
   x = 64,716.94