Finding the Third Proportional to 3,985,264 and 8,537,450

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985,264 : 8,537,450 = 8,537,450 : x
2. Step 2: Convert to fraction form
   3,985,264/8,537,450 = 8,537,450/x
3. Step 3: Cross multiply
   3,985,264x = 8,537,450 × 8,537,450
4. Step 4: Simplify right side
   3,985,264x = 72,888,052,502,500
5. Step 5: Solve for x
   x = 72,888,052,502,500/3,985,264
6. Step 6: Final answer
   x = 18,289,391.24