Finding the Third Proportional to 220,669.50 and 472,443

Step by Step Solution

1. Step 1: Write the proportion equation
   220,669.50 : 472,443 = 472,443 : x
2. Step 2: Convert to fraction form
   220,669.50/472,443 = 472,443/x
3. Step 3: Cross multiply
   220,669.50x = 472,443 × 472,443
4. Step 4: Simplify right side
   220,669.50x = 223,202,388,249
5. Step 5: Solve for x
   x = 223,202,388,249/220,669.50
6. Step 6: Final answer
   x = 1,011,478.20