Finding the Third Proportional to 302,935.50 and 664,623

Step by Step Solution

1. Step 1: Write the proportion equation
   302,935.50 : 664,623 = 664,623 : x
2. Step 2: Convert to fraction form
   302,935.50/664,623 = 664,623/x
3. Step 3: Cross multiply
   302,935.50x = 664,623 × 664,623
4. Step 4: Simplify right side
   302,935.50x = 441,723,732,129
5. Step 5: Solve for x
   x = 441,723,732,129/302,935.50
6. Step 6: Final answer
   x = 1,458,144.50