Finding the Third Proportional to 1,063.75 and 2,290.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.75 : 2,290.25 = 2,290.25 : x
2. Step 2: Convert to fraction form
   1,063.75/2,290.25 = 2,290.25/x
3. Step 3: Cross multiply
   1,063.75x = 2,290.25 × 2,290.25
4. Step 4: Simplify right side
   1,063.75x = 5,245,245.06
5. Step 5: Solve for x
   x = 5,245,245.06/1,063.75
6. Step 6: Final answer
   x = 4,930.90