Finding the Third Proportional to 142,038.50 and 303,777

Step by Step Solution

1. Step 1: Write the proportion equation
   142,038.50 : 303,777 = 303,777 : x
2. Step 2: Convert to fraction form
   142,038.50/303,777 = 303,777/x
3. Step 3: Cross multiply
   142,038.50x = 303,777 × 303,777
4. Step 4: Simplify right side
   142,038.50x = 92,280,465,729
5. Step 5: Solve for x
   x = 92,280,465,729/142,038.50
6. Step 6: Final answer
   x = 649,686.29