Finding the Third Proportional to 21,840 and 35,896

Step by Step Solution

1. Step 1: Write the proportion equation
   21,840 : 35,896 = 35,896 : x
2. Step 2: Convert to fraction form
   21,840/35,896 = 35,896/x
3. Step 3: Cross multiply
   21,840x = 35,896 × 35,896
4. Step 4: Simplify right side
   21,840x = 1,288,522,816
5. Step 5: Solve for x
   x = 1,288,522,816/21,840
6. Step 6: Final answer
   x = 58,998.30