Finding the Third Proportional to 105,948 and 220,608

Step by Step Solution

1. Step 1: Write the proportion equation
   105,948 : 220,608 = 220,608 : x
2. Step 2: Convert to fraction form
   105,948/220,608 = 220,608/x
3. Step 3: Cross multiply
   105,948x = 220,608 × 220,608
4. Step 4: Simplify right side
   105,948x = 48,667,889,664
5. Step 5: Solve for x
   x = 48,667,889,664/105,948
6. Step 6: Final answer
   x = 459,356.38