Finding the Third Proportional to 16,158 and 33,780

Step by Step Solution

1. Step 1: Write the proportion equation
   16,158 : 33,780 = 33,780 : x
2. Step 2: Convert to fraction form
   16,158/33,780 = 33,780/x
3. Step 3: Cross multiply
   16,158x = 33,780 × 33,780
4. Step 4: Simplify right side
   16,158x = 1,141,088,400
5. Step 5: Solve for x
   x = 1,141,088,400/16,158
6. Step 6: Final answer
   x = 70,620.65