Finding the Third Proportional to 302,811.50 and 470,208

Step by Step Solution

1. Step 1: Write the proportion equation
   302,811.50 : 470,208 = 470,208 : x
2. Step 2: Convert to fraction form
   302,811.50/470,208 = 470,208/x
3. Step 3: Cross multiply
   302,811.50x = 470,208 × 470,208
4. Step 4: Simplify right side
   302,811.50x = 221,095,563,264
5. Step 5: Solve for x
   x = 221,095,563,264/302,811.50
6. Step 6: Final answer
   x = 730,142.56