Finding the Third Proportional to 21,510 and 44,990

Step by Step Solution

1. Step 1: Write the proportion equation
   21,510 : 44,990 = 44,990 : x
2. Step 2: Convert to fraction form
   21,510/44,990 = 44,990/x
3. Step 3: Cross multiply
   21,510x = 44,990 × 44,990
4. Step 4: Simplify right side
   21,510x = 2,024,100,100
5. Step 5: Solve for x
   x = 2,024,100,100/21,510
6. Step 6: Final answer
   x = 94,100.42