Finding the Third Proportional to 303,217 and 470,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,217 : 470,815.50 = 470,815.50 : x
2. Step 2: Convert to fraction form
   303,217/470,815.50 = 470,815.50/x
3. Step 3: Cross multiply
   303,217x = 470,815.50 × 470,815.50
4. Step 4: Simplify right side
   303,217x = 221,667,235,040.25
5. Step 5: Solve for x
   x = 221,667,235,040.25/303,217
6. Step 6: Final answer
   x = 731,051.47