Finding the Third Proportional to 2,212.31 and 5,219.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.31 : 5,219.44 = 5,219.44 : x
2. Step 2: Convert to fraction form
   2,212.31/5,219.44 = 5,219.44/x
3. Step 3: Cross multiply
   2,212.31x = 5,219.44 × 5,219.44
4. Step 4: Simplify right side
   2,212.31x = 27,242,527.82
5. Step 5: Solve for x
   x = 27,242,527.82/2,212.31
6. Step 6: Final answer
   x = 12,314.05