Finding the Third Proportional to 427,255.50 and 664,212

Step by Step Solution

1. Step 1: Write the proportion equation
   427,255.50 : 664,212 = 664,212 : x
2. Step 2: Convert to fraction form
   427,255.50/664,212 = 664,212/x
3. Step 3: Cross multiply
   427,255.50x = 664,212 × 664,212
4. Step 4: Simplify right side
   427,255.50x = 441,177,580,944
5. Step 5: Solve for x
   x = 441,177,580,944/427,255.50
6. Step 6: Final answer
   x = 1,032,584.91