Finding the Third Proportional to 281,787 and 664,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,787 : 664,513.50 = 664,513.50 : x
2. Step 2: Convert to fraction form
   281,787/664,513.50 = 664,513.50/x
3. Step 3: Cross multiply
   281,787x = 664,513.50 × 664,513.50
4. Step 4: Simplify right side
   281,787x = 441,578,191,682.25
5. Step 5: Solve for x
   x = 441,578,191,682.25/281,787
6. Step 6: Final answer
   x = 1,567,063.75