Finding the Third Proportional to 281,766 and 664,462.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,766 : 664,462.50 = 664,462.50 : x
2. Step 2: Convert to fraction form
   281,766/664,462.50 = 664,462.50/x
3. Step 3: Cross multiply
   281,766x = 664,462.50 × 664,462.50
4. Step 4: Simplify right side
   281,766x = 441,510,413,906.25
5. Step 5: Solve for x
   x = 441,510,413,906.25/281,766
6. Step 6: Final answer
   x = 1,566,939.99