Finding the Third Proportional to 102,708 and 220,765.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,708 : 220,765.50 = 220,765.50 : x
2. Step 2: Convert to fraction form
   102,708/220,765.50 = 220,765.50/x
3. Step 3: Cross multiply
   102,708x = 220,765.50 × 220,765.50
4. Step 4: Simplify right side
   102,708x = 48,737,405,990.25
5. Step 5: Solve for x
   x = 48,737,405,990.25/102,708
6. Step 6: Final answer
   x = 474,523.95