Finding the Third Proportional to 139,648.50 and 303,597

Step by Step Solution

1. Step 1: Write the proportion equation
   139,648.50 : 303,597 = 303,597 : x
2. Step 2: Convert to fraction form
   139,648.50/303,597 = 303,597/x
3. Step 3: Cross multiply
   139,648.50x = 303,597 × 303,597
4. Step 4: Simplify right side
   139,648.50x = 92,171,138,409
5. Step 5: Solve for x
   x = 92,171,138,409/139,648.50
6. Step 6: Final answer
   x = 660,022.40