Finding the Third Proportional to 303,212 and 470,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,212 : 470,806.50 = 470,806.50 : x
2. Step 2: Convert to fraction form
   303,212/470,806.50 = 470,806.50/x
3. Step 3: Cross multiply
   303,212x = 470,806.50 × 470,806.50
4. Step 4: Simplify right side
   303,212x = 221,658,760,442.25
5. Step 5: Solve for x
   x = 221,658,760,442.25/303,212
6. Step 6: Final answer
   x = 731,035.58