Finding the Third Proportional to 2,590.31 and 3,445.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.31 : 3,445.03 = 3,445.03 : x
2. Step 2: Convert to fraction form
   2,590.31/3,445.03 = 3,445.03/x
3. Step 3: Cross multiply
   2,590.31x = 3,445.03 × 3,445.03
4. Step 4: Simplify right side
   2,590.31x = 11,868,240.31
5. Step 5: Solve for x
   x = 11,868,240.31/2,590.31
6. Step 6: Final answer
   x = 4,581.78