Finding the Third Proportional to 427,359 and 664,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   427,359 : 664,366.50 = 664,366.50 : x
2. Step 2: Convert to fraction form
   427,359/664,366.50 = 664,366.50/x
3. Step 3: Cross multiply
   427,359x = 664,366.50 × 664,366.50
4. Step 4: Simplify right side
   427,359x = 441,382,846,322.25
5. Step 5: Solve for x
   x = 441,382,846,322.25/427,359
6. Step 6: Final answer
   x = 1,032,815.14