Finding the Third Proportional to 305,271 and 664,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,271 : 664,780.50 = 664,780.50 : x
2. Step 2: Convert to fraction form
   305,271/664,780.50 = 664,780.50/x
3. Step 3: Cross multiply
   305,271x = 664,780.50 × 664,780.50
4. Step 4: Simplify right side
   305,271x = 441,933,113,180.25
5. Step 5: Solve for x
   x = 441,933,113,180.25/305,271
6. Step 6: Final answer
   x = 1,447,674.73