Finding the Third Proportional to 16,820 and 33,637

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820 : 33,637 = 33,637 : x
2. Step 2: Convert to fraction form
   16,820/33,637 = 33,637/x
3. Step 3: Cross multiply
   16,820x = 33,637 × 33,637
4. Step 4: Simplify right side
   16,820x = 1,131,447,769
5. Step 5: Solve for x
   x = 1,131,447,769/16,820
6. Step 6: Final answer
   x = 67,268.00