Finding the Third Proportional to 21,432 and 34,104

Step by Step Solution

1. Step 1: Write the proportion equation
   21,432 : 34,104 = 34,104 : x
2. Step 2: Convert to fraction form
   21,432/34,104 = 34,104/x
3. Step 3: Cross multiply
   21,432x = 34,104 × 34,104
4. Step 4: Simplify right side
   21,432x = 1,163,082,816
5. Step 5: Solve for x
   x = 1,163,082,816/21,432
6. Step 6: Final answer
   x = 54,268.52