Finding the Third Proportional to 221,763 and 534,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,763 : 534,655.50 = 534,655.50 : x
2. Step 2: Convert to fraction form
   221,763/534,655.50 = 534,655.50/x
3. Step 3: Cross multiply
   221,763x = 534,655.50 × 534,655.50
4. Step 4: Simplify right side
   221,763x = 285,856,503,680.25
5. Step 5: Solve for x
   x = 285,856,503,680.25/221,763
6. Step 6: Final answer
   x = 1,289,018.02