Finding the Third Proportional to 139,022.50 and 303,529

Step by Step Solution

1. Step 1: Write the proportion equation
   139,022.50 : 303,529 = 303,529 : x
2. Step 2: Convert to fraction form
   139,022.50/303,529 = 303,529/x
3. Step 3: Cross multiply
   139,022.50x = 303,529 × 303,529
4. Step 4: Simplify right side
   139,022.50x = 92,129,853,841
5. Step 5: Solve for x
   x = 92,129,853,841/139,022.50
6. Step 6: Final answer
   x = 662,697.43