Finding the Third Proportional to 162,036 and 253,608

Step by Step Solution

1. Step 1: Write the proportion equation
   162,036 : 253,608 = 253,608 : x
2. Step 2: Convert to fraction form
   162,036/253,608 = 253,608/x
3. Step 3: Cross multiply
   162,036x = 253,608 × 253,608
4. Step 4: Simplify right side
   162,036x = 64,317,017,664
5. Step 5: Solve for x
   x = 64,317,017,664/162,036
6. Step 6: Final answer
   x = 396,930.42