Finding the Third Proportional to 2,690,142 and 5,805,256

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,142 : 5,805,256 = 5,805,256 : x
2. Step 2: Convert to fraction form
   2,690,142/5,805,256 = 5,805,256/x
3. Step 3: Cross multiply
   2,690,142x = 5,805,256 × 5,805,256
4. Step 4: Simplify right side
   2,690,142x = 33,700,997,225,536
5. Step 5: Solve for x
   x = 33,700,997,225,536/2,690,142
6. Step 6: Final answer
   x = 12,527,590.45