Finding the Third Proportional to 20,538 and 43,222

Step by Step Solution

1. Step 1: Write the proportion equation
   20,538 : 43,222 = 43,222 : x
2. Step 2: Convert to fraction form
   20,538/43,222 = 43,222/x
3. Step 3: Cross multiply
   20,538x = 43,222 × 43,222
4. Step 4: Simplify right side
   20,538x = 1,868,141,284
5. Step 5: Solve for x
   x = 1,868,141,284/20,538
6. Step 6: Final answer
   x = 90,960.23