Finding the Third Proportional to 281,716.50 and 664,359

Step by Step Solution

1. Step 1: Write the proportion equation
   281,716.50 : 664,359 = 664,359 : x
2. Step 2: Convert to fraction form
   281,716.50/664,359 = 664,359/x
3. Step 3: Cross multiply
   281,716.50x = 664,359 × 664,359
4. Step 4: Simplify right side
   281,716.50x = 441,372,880,881
5. Step 5: Solve for x
   x = 441,372,880,881/281,716.50
6. Step 6: Final answer
   x = 1,566,727.12