Finding the Third Proportional to 20,572 and 30,770

Step by Step Solution

1. Step 1: Write the proportion equation
   20,572 : 30,770 = 30,770 : x
2. Step 2: Convert to fraction form
   20,572/30,770 = 30,770/x
3. Step 3: Cross multiply
   20,572x = 30,770 × 30,770
4. Step 4: Simplify right side
   20,572x = 946,792,900
5. Step 5: Solve for x
   x = 946,792,900/20,572
6. Step 6: Final answer
   x = 46,023.38