Finding the Third Proportional to 65,442 and 100,728

Step by Step Solution

1. Step 1: Write the proportion equation
   65,442 : 100,728 = 100,728 : x
2. Step 2: Convert to fraction form
   65,442/100,728 = 100,728/x
3. Step 3: Cross multiply
   65,442x = 100,728 × 100,728
4. Step 4: Simplify right side
   65,442x = 10,146,129,984
5. Step 5: Solve for x
   x = 10,146,129,984/65,442
6. Step 6: Final answer
   x = 155,040.04