Finding the Third Proportional to 103,662 and 221,538

Step by Step Solution

1. Step 1: Write the proportion equation
   103,662 : 221,538 = 221,538 : x
2. Step 2: Convert to fraction form
   103,662/221,538 = 221,538/x
3. Step 3: Cross multiply
   103,662x = 221,538 × 221,538
4. Step 4: Simplify right side
   103,662x = 49,079,085,444
5. Step 5: Solve for x
   x = 49,079,085,444/103,662
6. Step 6: Final answer
   x = 473,453.01