Finding the Third Proportional to 139,540 and 320,014

Step by Step Solution

1. Step 1: Write the proportion equation
   139,540 : 320,014 = 320,014 : x
2. Step 2: Convert to fraction form
   139,540/320,014 = 320,014/x
3. Step 3: Cross multiply
   139,540x = 320,014 × 320,014
4. Step 4: Simplify right side
   139,540x = 102,408,960,196
5. Step 5: Solve for x
   x = 102,408,960,196/139,540
6. Step 6: Final answer
   x = 733,903.97