Finding the Third Proportional to 3,870,072 and 8,476,596

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870,072 : 8,476,596 = 8,476,596 : x
2. Step 2: Convert to fraction form
   3,870,072/8,476,596 = 8,476,596/x
3. Step 3: Cross multiply
   3,870,072x = 8,476,596 × 8,476,596
4. Step 4: Simplify right side
   3,870,072x = 71,852,679,747,216
5. Step 5: Solve for x
   x = 71,852,679,747,216/3,870,072
6. Step 6: Final answer
   x = 18,566,238.50