Finding the Third Proportional to 427,363.50 and 664,356

Step by Step Solution

1. Step 1: Write the proportion equation
   427,363.50 : 664,356 = 664,356 : x
2. Step 2: Convert to fraction form
   427,363.50/664,356 = 664,356/x
3. Step 3: Cross multiply
   427,363.50x = 664,356 × 664,356
4. Step 4: Simplify right side
   427,363.50x = 441,368,894,736
5. Step 5: Solve for x
   x = 441,368,894,736/427,363.50
6. Step 6: Final answer
   x = 1,032,771.62