Finding the Third Proportional to 221,564 and 483,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,564 : 483,228.50 = 483,228.50 : x
2. Step 2: Convert to fraction form
   221,564/483,228.50 = 483,228.50/x
3. Step 3: Cross multiply
   221,564x = 483,228.50 × 483,228.50
4. Step 4: Simplify right side
   221,564x = 233,509,783,212.25
5. Step 5: Solve for x
   x = 233,509,783,212.25/221,564
6. Step 6: Final answer
   x = 1,053,915.72