Finding the Third Proportional to 21,990 and 34,075

Step by Step Solution

1. Step 1: Write the proportion equation
   21,990 : 34,075 = 34,075 : x
2. Step 2: Convert to fraction form
   21,990/34,075 = 34,075/x
3. Step 3: Cross multiply
   21,990x = 34,075 × 34,075
4. Step 4: Simplify right side
   21,990x = 1,161,105,625
5. Step 5: Solve for x
   x = 1,161,105,625/21,990
6. Step 6: Final answer
   x = 52,801.53