Finding the Third Proportional to 302,910 and 470,347.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,910 : 470,347.50 = 470,347.50 : x
2. Step 2: Convert to fraction form
   302,910/470,347.50 = 470,347.50/x
3. Step 3: Cross multiply
   302,910x = 470,347.50 × 470,347.50
4. Step 4: Simplify right side
   302,910x = 221,226,770,756.25
5. Step 5: Solve for x
   x = 221,226,770,756.25/302,910
6. Step 6: Final answer
   x = 730,338.29