Finding the Third Proportional to 3,699,540 and 8,071,378

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699,540 : 8,071,378 = 8,071,378 : x
2. Step 2: Convert to fraction form
   3,699,540/8,071,378 = 8,071,378/x
3. Step 3: Cross multiply
   3,699,540x = 8,071,378 × 8,071,378
4. Step 4: Simplify right side
   3,699,540x = 65,147,142,818,884
5. Step 5: Solve for x
   x = 65,147,142,818,884/3,699,540
6. Step 6: Final answer
   x = 17,609,525.19