Finding the Third Proportional to 142,443.50 and 303,953.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,443.50 : 303,953.50 = 303,953.50 : x
2. Step 2: Convert to fraction form
   142,443.50/303,953.50 = 303,953.50/x
3. Step 3: Cross multiply
   142,443.50x = 303,953.50 × 303,953.50
4. Step 4: Simplify right side
   142,443.50x = 92,387,730,162.25
5. Step 5: Solve for x
   x = 92,387,730,162.25/142,443.50
6. Step 6: Final answer
   x = 648,592.11