Finding the Third Proportional to 21,988 and 35,454

Step by Step Solution

1. Step 1: Write the proportion equation
   21,988 : 35,454 = 35,454 : x
2. Step 2: Convert to fraction form
   21,988/35,454 = 35,454/x
3. Step 3: Cross multiply
   21,988x = 35,454 × 35,454
4. Step 4: Simplify right side
   21,988x = 1,256,986,116
5. Step 5: Solve for x
   x = 1,256,986,116/21,988
6. Step 6: Final answer
   x = 57,166.91