Finding the Third Proportional to 79,308 and 105,728

Step by Step Solution

1. Step 1: Write the proportion equation
   79,308 : 105,728 = 105,728 : x
2. Step 2: Convert to fraction form
   79,308/105,728 = 105,728/x
3. Step 3: Cross multiply
   79,308x = 105,728 × 105,728
4. Step 4: Simplify right side
   79,308x = 11,178,409,984
5. Step 5: Solve for x
   x = 11,178,409,984/79,308
6. Step 6: Final answer
   x = 140,949.34