Finding the Third Proportional to 1,455.47 and 3,141.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.47 : 3,141.28 = 3,141.28 : x
2. Step 2: Convert to fraction form
   1,455.47/3,141.28 = 3,141.28/x
3. Step 3: Cross multiply
   1,455.47x = 3,141.28 × 3,141.28
4. Step 4: Simplify right side
   1,455.47x = 9,867,647.89
5. Step 5: Solve for x
   x = 9,867,647.89/1,455.47
6. Step 6: Final answer
   x = 6,779.70