Finding the Third Proportional to 16,518 and 34,410

Step by Step Solution

1. Step 1: Write the proportion equation
   16,518 : 34,410 = 34,410 : x
2. Step 2: Convert to fraction form
   16,518/34,410 = 34,410/x
3. Step 3: Cross multiply
   16,518x = 34,410 × 34,410
4. Step 4: Simplify right side
   16,518x = 1,184,048,100
5. Step 5: Solve for x
   x = 1,184,048,100/16,518
6. Step 6: Final answer
   x = 71,682.29