Finding the Third Proportional to 2,589,890 and 5,282,500

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589,890 : 5,282,500 = 5,282,500 : x
2. Step 2: Convert to fraction form
   2,589,890/5,282,500 = 5,282,500/x
3. Step 3: Cross multiply
   2,589,890x = 5,282,500 × 5,282,500
4. Step 4: Simplify right side
   2,589,890x = 27,904,806,250,000
5. Step 5: Solve for x
   x = 27,904,806,250,000/2,589,890
6. Step 6: Final answer
   x = 10,774,514.07