Finding the Third Proportional to 303,876 and 442,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,876 : 442,486.50 = 442,486.50 : x
2. Step 2: Convert to fraction form
   303,876/442,486.50 = 442,486.50/x
3. Step 3: Cross multiply
   303,876x = 442,486.50 × 442,486.50
4. Step 4: Simplify right side
   303,876x = 195,794,302,682.25
5. Step 5: Solve for x
   x = 195,794,302,682.25/303,876
6. Step 6: Final answer
   x = 644,323.02