Finding the Third Proportional to 1,328.13 and 3,613.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328.13 : 3,613.25 = 3,613.25 : x
2. Step 2: Convert to fraction form
   1,328.13/3,613.25 = 3,613.25/x
3. Step 3: Cross multiply
   1,328.13x = 3,613.25 × 3,613.25
4. Step 4: Simplify right side
   1,328.13x = 13,055,575.56
5. Step 5: Solve for x
   x = 13,055,575.56/1,328.13
6. Step 6: Final answer
   x = 9,830.08