Finding the Third Proportional to 2,486.53 and 5,378.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,486.53 : 5,378.06 = 5,378.06 : x
2. Step 2: Convert to fraction form
   2,486.53/5,378.06 = 5,378.06/x
3. Step 3: Cross multiply
   2,486.53x = 5,378.06 × 5,378.06
4. Step 4: Simplify right side
   2,486.53x = 28,923,556.25
5. Step 5: Solve for x
   x = 28,923,556.25/2,486.53
6. Step 6: Final answer
   x = 11,632.09