Finding the Third Proportional to 2,219.25 and 3,450.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.25 : 3,450.56 = 3,450.56 : x
2. Step 2: Convert to fraction form
   2,219.25/3,450.56 = 3,450.56/x
3. Step 3: Cross multiply
   2,219.25x = 3,450.56 × 3,450.56
4. Step 4: Simplify right side
   2,219.25x = 11,906,381.57
5. Step 5: Solve for x
   x = 11,906,381.57/2,219.25
6. Step 6: Final answer
   x = 5,365.05