Finding the Third Proportional to 3,546.75 and 7,817.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.75 : 7,817.25 = 7,817.25 : x
2. Step 2: Convert to fraction form
   3,546.75/7,817.25 = 7,817.25/x
3. Step 3: Cross multiply
   3,546.75x = 7,817.25 × 7,817.25
4. Step 4: Simplify right side
   3,546.75x = 61,109,397.56
5. Step 5: Solve for x
   x = 61,109,397.56/3,546.75
6. Step 6: Final answer
   x = 17,229.69