Finding the Third Proportional to 2,217.38 and 3,445.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.38 : 3,445.88 = 3,445.88 : x
2. Step 2: Convert to fraction form
   2,217.38/3,445.88 = 3,445.88/x
3. Step 3: Cross multiply
   2,217.38x = 3,445.88 × 3,445.88
4. Step 4: Simplify right side
   2,217.38x = 11,874,054.52
5. Step 5: Solve for x
   x = 11,874,054.52/2,217.38
6. Step 6: Final answer
   x = 5,355.01