Finding the Third Proportional to 20,558 and 43,264

Step by Step Solution

1. Step 1: Write the proportion equation
   20,558 : 43,264 = 43,264 : x
2. Step 2: Convert to fraction form
   20,558/43,264 = 43,264/x
3. Step 3: Cross multiply
   20,558x = 43,264 × 43,264
4. Step 4: Simplify right side
   20,558x = 1,871,773,696
5. Step 5: Solve for x
   x = 1,871,773,696/20,558
6. Step 6: Final answer
   x = 91,048.43