Finding the Third Proportional to 162,210 and 355,996

Step by Step Solution

1. Step 1: Write the proportion equation
   162,210 : 355,996 = 355,996 : x
2. Step 2: Convert to fraction form
   162,210/355,996 = 355,996/x
3. Step 3: Cross multiply
   162,210x = 355,996 × 355,996
4. Step 4: Simplify right side
   162,210x = 126,733,152,016
5. Step 5: Solve for x
   x = 126,733,152,016/162,210
6. Step 6: Final answer
   x = 781,290.62