Finding the Third Proportional to 18,543.94 and 21,551.06

Step by Step Solution

1. Step 1: Write the proportion equation
   18,543.94 : 21,551.06 = 21,551.06 : x
2. Step 2: Convert to fraction form
   18,543.94/21,551.06 = 21,551.06/x
3. Step 3: Cross multiply
   18,543.94x = 21,551.06 × 21,551.06
4. Step 4: Simplify right side
   18,543.94x = 464,448,294.88
5. Step 5: Solve for x
   x = 464,448,294.88/18,543.94
6. Step 6: Final answer
   x = 25,045.83