Finding the Third Proportional to 21,567 and 34,431

Step by Step Solution

1. Step 1: Write the proportion equation
   21,567 : 34,431 = 34,431 : x
2. Step 2: Convert to fraction form
   21,567/34,431 = 34,431/x
3. Step 3: Cross multiply
   21,567x = 34,431 × 34,431
4. Step 4: Simplify right side
   21,567x = 1,185,493,761
5. Step 5: Solve for x
   x = 1,185,493,761/21,567
6. Step 6: Final answer
   x = 54,967.95