Finding the Third Proportional to 220,806 and 480,018

Step by Step Solution

1. Step 1: Write the proportion equation
   220,806 : 480,018 = 480,018 : x
2. Step 2: Convert to fraction form
   220,806/480,018 = 480,018/x
3. Step 3: Cross multiply
   220,806x = 480,018 × 480,018
4. Step 4: Simplify right side
   220,806x = 230,417,280,324
5. Step 5: Solve for x
   x = 230,417,280,324/220,806
6. Step 6: Final answer
   x = 1,043,528.17