Finding the Third Proportional to 139,000 and 303,492

Step by Step Solution

1. Step 1: Write the proportion equation
   139,000 : 303,492 = 303,492 : x
2. Step 2: Convert to fraction form
   139,000/303,492 = 303,492/x
3. Step 3: Cross multiply
   139,000x = 303,492 × 303,492
4. Step 4: Simplify right side
   139,000x = 92,107,394,064
5. Step 5: Solve for x
   x = 92,107,394,064/139,000
6. Step 6: Final answer
   x = 662,643.12