Finding the Third Proportional to 664,614 and 996,677.25

Step by Step Solution

1. Step 1: Write the proportion equation
   664,614 : 996,677.25 = 996,677.25 : x
2. Step 2: Convert to fraction form
   664,614/996,677.25 = 996,677.25/x
3. Step 3: Cross multiply
   664,614x = 996,677.25 × 996,677.25
4. Step 4: Simplify right side
   664,614x = 993,365,540,667.56
5. Step 5: Solve for x
   x = 993,365,540,667.56/664,614
6. Step 6: Final answer
   x = 1,494,650.34