Finding the Third Proportional to 162,212 and 356,000

Step by Step Solution

1. Step 1: Write the proportion equation
   162,212 : 356,000 = 356,000 : x
2. Step 2: Convert to fraction form
   162,212/356,000 = 356,000/x
3. Step 3: Cross multiply
   162,212x = 356,000 × 356,000
4. Step 4: Simplify right side
   162,212x = 126,736,000,000
5. Step 5: Solve for x
   x = 126,736,000,000/162,212
6. Step 6: Final answer
   x = 781,298.55