Finding the Third Proportional to 3,012.47 and 6,487.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.47 : 6,487.52 = 6,487.52 : x
2. Step 2: Convert to fraction form
   3,012.47/6,487.52 = 6,487.52/x
3. Step 3: Cross multiply
   3,012.47x = 6,487.52 × 6,487.52
4. Step 4: Simplify right side
   3,012.47x = 42,087,960.35
5. Step 5: Solve for x
   x = 42,087,960.35/3,012.47
6. Step 6: Final answer
   x = 13,971.25