Finding the Third Proportional to 220,878.69 and 480,863.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,878.69 : 480,863.50 = 480,863.50 : x
2. Step 2: Convert to fraction form
   220,878.69/480,863.50 = 480,863.50/x
3. Step 3: Cross multiply
   220,878.69x = 480,863.50 × 480,863.50
4. Step 4: Simplify right side
   220,878.69x = 231,229,705,632.25
5. Step 5: Solve for x
   x = 231,229,705,632.25/220,878.69
6. Step 6: Final answer
   x = 1,046,862.91