Finding the Third Proportional to 162,978 and 360,948

Step by Step Solution

1. Step 1: Write the proportion equation
   162,978 : 360,948 = 360,948 : x
2. Step 2: Convert to fraction form
   162,978/360,948 = 360,948/x
3. Step 3: Cross multiply
   162,978x = 360,948 × 360,948
4. Step 4: Simplify right side
   162,978x = 130,283,458,704
5. Step 5: Solve for x
   x = 130,283,458,704/162,978
6. Step 6: Final answer
   x = 799,392.92