Finding the Third Proportional to 20,573 and 45,521

Step by Step Solution

1. Step 1: Write the proportion equation
   20,573 : 45,521 = 45,521 : x
2. Step 2: Convert to fraction form
   20,573/45,521 = 45,521/x
3. Step 3: Cross multiply
   20,573x = 45,521 × 45,521
4. Step 4: Simplify right side
   20,573x = 2,072,161,441
5. Step 5: Solve for x
   x = 2,072,161,441/20,573
6. Step 6: Final answer
   x = 100,722.38