Finding the Third Proportional to 1,786,520 and 3,894,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786,520 : 3,894,256 = 3,894,256 : x
2. Step 2: Convert to fraction form
   1,786,520/3,894,256 = 3,894,256/x
3. Step 3: Cross multiply
   1,786,520x = 3,894,256 × 3,894,256
4. Step 4: Simplify right side
   1,786,520x = 15,165,229,793,536
5. Step 5: Solve for x
   x = 15,165,229,793,536/1,786,520
6. Step 6: Final answer
   x = 8,488,698.58