Finding the Third Proportional to 303,789 and 664,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,789 : 664,764.50 = 664,764.50 : x
2. Step 2: Convert to fraction form
   303,789/664,764.50 = 664,764.50/x
3. Step 3: Cross multiply
   303,789x = 664,764.50 × 664,764.50
4. Step 4: Simplify right side
   303,789x = 441,911,840,460.25
5. Step 5: Solve for x
   x = 441,911,840,460.25/303,789
6. Step 6: Final answer
   x = 1,454,667.02