Finding the Third Proportional to 221,560 and 483,220

Step by Step Solution

1. Step 1: Write the proportion equation
   221,560 : 483,220 = 483,220 : x
2. Step 2: Convert to fraction form
   221,560/483,220 = 483,220/x
3. Step 3: Cross multiply
   221,560x = 483,220 × 483,220
4. Step 4: Simplify right side
   221,560x = 233,501,568,400
5. Step 5: Solve for x
   x = 233,501,568,400/221,560
6. Step 6: Final answer
   x = 1,053,897.67