Finding the Third Proportional to 139,025.50 and 303,535

Step by Step Solution

1. Step 1: Write the proportion equation
   139,025.50 : 303,535 = 303,535 : x
2. Step 2: Convert to fraction form
   139,025.50/303,535 = 303,535/x
3. Step 3: Cross multiply
   139,025.50x = 303,535 × 303,535
4. Step 4: Simplify right side
   139,025.50x = 92,133,496,225
5. Step 5: Solve for x
   x = 92,133,496,225/139,025.50
6. Step 6: Final answer
   x = 662,709.33