Finding the Third Proportional to 3,966,658 and 8,593,574

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966,658 : 8,593,574 = 8,593,574 : x
2. Step 2: Convert to fraction form
   3,966,658/8,593,574 = 8,593,574/x
3. Step 3: Cross multiply
   3,966,658x = 8,593,574 × 8,593,574
4. Step 4: Simplify right side
   3,966,658x = 73,849,514,093,476
5. Step 5: Solve for x
   x = 73,849,514,093,476/3,966,658
6. Step 6: Final answer
   x = 18,617,565.24