Finding the Third Proportional to 2,590.88 and 3,520.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.88 : 3,520.69 = 3,520.69 : x
2. Step 2: Convert to fraction form
   2,590.88/3,520.69 = 3,520.69/x
3. Step 3: Cross multiply
   2,590.88x = 3,520.69 × 3,520.69
4. Step 4: Simplify right side
   2,590.88x = 12,395,240.47
5. Step 5: Solve for x
   x = 12,395,240.47/2,590.88
6. Step 6: Final answer
   x = 4,784.19