Finding the Third Proportional to 221,556 and 483,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,556 : 483,211.50 = 483,211.50 : x
2. Step 2: Convert to fraction form
   221,556/483,211.50 = 483,211.50/x
3. Step 3: Cross multiply
   221,556x = 483,211.50 × 483,211.50
4. Step 4: Simplify right side
   221,556x = 233,493,353,732.25
5. Step 5: Solve for x
   x = 233,493,353,732.25/221,556
6. Step 6: Final answer
   x = 1,053,879.62