Finding the Third Proportional to 303,648 and 432,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,648 : 432,550.50 = 432,550.50 : x
2. Step 2: Convert to fraction form
   303,648/432,550.50 = 432,550.50/x
3. Step 3: Cross multiply
   303,648x = 432,550.50 × 432,550.50
4. Step 4: Simplify right side
   303,648x = 187,099,935,050.25
5. Step 5: Solve for x
   x = 187,099,935,050.25/303,648
6. Step 6: Final answer
   x = 616,173.78