Finding the Third Proportional to 78,628 and 104,757

Step by Step Solution

1. Step 1: Write the proportion equation
   78,628 : 104,757 = 104,757 : x
2. Step 2: Convert to fraction form
   78,628/104,757 = 104,757/x
3. Step 3: Cross multiply
   78,628x = 104,757 × 104,757
4. Step 4: Simplify right side
   78,628x = 10,974,029,049
5. Step 5: Solve for x
   x = 10,974,029,049/78,628
6. Step 6: Final answer
   x = 139,568.97