Finding the Third Proportional to 16,998 and 34,940

Step by Step Solution

1. Step 1: Write the proportion equation
   16,998 : 34,940 = 34,940 : x
2. Step 2: Convert to fraction form
   16,998/34,940 = 34,940/x
3. Step 3: Cross multiply
   16,998x = 34,940 × 34,940
4. Step 4: Simplify right side
   16,998x = 1,220,803,600
5. Step 5: Solve for x
   x = 1,220,803,600/16,998
6. Step 6: Final answer
   x = 71,820.43