Finding the Third Proportional to 13,606.88 and 21,759.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,606.88 : 21,759.75 = 21,759.75 : x
2. Step 2: Convert to fraction form
   13,606.88/21,759.75 = 21,759.75/x
3. Step 3: Cross multiply
   13,606.88x = 21,759.75 × 21,759.75
4. Step 4: Simplify right side
   13,606.88x = 473,486,720.06
5. Step 5: Solve for x
   x = 473,486,720.06/13,606.88
6. Step 6: Final answer
   x = 34,797.61