Finding the Third Proportional to 16,980 and 35,156

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980 : 35,156 = 35,156 : x
2. Step 2: Convert to fraction form
   16,980/35,156 = 35,156/x
3. Step 3: Cross multiply
   16,980x = 35,156 × 35,156
4. Step 4: Simplify right side
   16,980x = 1,235,944,336
5. Step 5: Solve for x
   x = 1,235,944,336/16,980
6. Step 6: Final answer
   x = 72,788.24