Finding the Third Proportional to 170,640 and 238,608

Step by Step Solution

1. Step 1: Write the proportion equation
   170,640 : 238,608 = 238,608 : x
2. Step 2: Convert to fraction form
   170,640/238,608 = 238,608/x
3. Step 3: Cross multiply
   170,640x = 238,608 × 238,608
4. Step 4: Simplify right side
   170,640x = 56,933,777,664
5. Step 5: Solve for x
   x = 56,933,777,664/170,640
6. Step 6: Final answer
   x = 333,648.49