Finding the Third Proportional to 3,237.47 and 3,586.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,237.47 : 3,586.78 = 3,586.78 : x
2. Step 2: Convert to fraction form
   3,237.47/3,586.78 = 3,586.78/x
3. Step 3: Cross multiply
   3,237.47x = 3,586.78 × 3,586.78
4. Step 4: Simplify right side
   3,237.47x = 12,864,999.74
5. Step 5: Solve for x
   x = 12,864,999.74/3,237.47
6. Step 6: Final answer
   x = 3,973.78