Finding the Third Proportional to 67,593 and 139,469

Step by Step Solution

1. Step 1: Write the proportion equation
   67,593 : 139,469 = 139,469 : x
2. Step 2: Convert to fraction form
   67,593/139,469 = 139,469/x
3. Step 3: Cross multiply
   67,593x = 139,469 × 139,469
4. Step 4: Simplify right side
   67,593x = 19,451,601,961
5. Step 5: Solve for x
   x = 19,451,601,961/67,593
6. Step 6: Final answer
   x = 287,775.39