Finding the Third Proportional to 225,728.50 and 470,140

Step by Step Solution

1. Step 1: Write the proportion equation
   225,728.50 : 470,140 = 470,140 : x
2. Step 2: Convert to fraction form
   225,728.50/470,140 = 470,140/x
3. Step 3: Cross multiply
   225,728.50x = 470,140 × 470,140
4. Step 4: Simplify right side
   225,728.50x = 221,031,619,600
5. Step 5: Solve for x
   x = 221,031,619,600/225,728.50
6. Step 6: Final answer
   x = 979,192.35