Finding the Third Proportional to 65,636 and 140,608

Step by Step Solution

1. Step 1: Write the proportion equation
   65,636 : 140,608 = 140,608 : x
2. Step 2: Convert to fraction form
   65,636/140,608 = 140,608/x
3. Step 3: Cross multiply
   65,636x = 140,608 × 140,608
4. Step 4: Simplify right side
   65,636x = 19,770,609,664
5. Step 5: Solve for x
   x = 19,770,609,664/65,636
6. Step 6: Final answer
   x = 301,215.94