Finding the Third Proportional to 21,369 and 34,330

Step by Step Solution

1. Step 1: Write the proportion equation
   21,369 : 34,330 = 34,330 : x
2. Step 2: Convert to fraction form
   21,369/34,330 = 34,330/x
3. Step 3: Cross multiply
   21,369x = 34,330 × 34,330
4. Step 4: Simplify right side
   21,369x = 1,178,548,900
5. Step 5: Solve for x
   x = 1,178,548,900/21,369
6. Step 6: Final answer
   x = 55,152.27