Finding the Third Proportional to 16,990 and 34,735

Step by Step Solution

1. Step 1: Write the proportion equation
   16,990 : 34,735 = 34,735 : x
2. Step 2: Convert to fraction form
   16,990/34,735 = 34,735/x
3. Step 3: Cross multiply
   16,990x = 34,735 × 34,735
4. Step 4: Simplify right side
   16,990x = 1,206,520,225
5. Step 5: Solve for x
   x = 1,206,520,225/16,990
6. Step 6: Final answer
   x = 71,013.55