Finding the Third Proportional to 302,737.50 and 664,518

Step by Step Solution

1. Step 1: Write the proportion equation
   302,737.50 : 664,518 = 664,518 : x
2. Step 2: Convert to fraction form
   302,737.50/664,518 = 664,518/x
3. Step 3: Cross multiply
   302,737.50x = 664,518 × 664,518
4. Step 4: Simplify right side
   302,737.50x = 441,584,172,324
5. Step 5: Solve for x
   x = 441,584,172,324/302,737.50
6. Step 6: Final answer
   x = 1,458,637.18