Finding the Third Proportional to 3,587.63 and 7,860.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,587.63 : 7,860.38 = 7,860.38 : x
2. Step 2: Convert to fraction form
   3,587.63/7,860.38 = 7,860.38/x
3. Step 3: Cross multiply
   3,587.63x = 7,860.38 × 7,860.38
4. Step 4: Simplify right side
   3,587.63x = 61,785,495.14
5. Step 5: Solve for x
   x = 61,785,495.14/3,587.63
6. Step 6: Final answer
   x = 17,221.84