Finding the Third Proportional to 162,828 and 243,930

Step by Step Solution

1. Step 1: Write the proportion equation
   162,828 : 243,930 = 243,930 : x
2. Step 2: Convert to fraction form
   162,828/243,930 = 243,930/x
3. Step 3: Cross multiply
   162,828x = 243,930 × 243,930
4. Step 4: Simplify right side
   162,828x = 59,501,844,900
5. Step 5: Solve for x
   x = 59,501,844,900/162,828
6. Step 6: Final answer
   x = 365,427.60