Finding the Third Proportional to 302,713.50 and 664,470

Step by Step Solution

1. Step 1: Write the proportion equation
   302,713.50 : 664,470 = 664,470 : x
2. Step 2: Convert to fraction form
   302,713.50/664,470 = 664,470/x
3. Step 3: Cross multiply
   302,713.50x = 664,470 × 664,470
4. Step 4: Simplify right side
   302,713.50x = 441,520,380,900
5. Step 5: Solve for x
   x = 441,520,380,900/302,713.50
6. Step 6: Final answer
   x = 1,458,542.09