Finding the Third Proportional to 3,686,684 and 8,019,636

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,684 : 8,019,636 = 8,019,636 : x
2. Step 2: Convert to fraction form
   3,686,684/8,019,636 = 8,019,636/x
3. Step 3: Cross multiply
   3,686,684x = 8,019,636 × 8,019,636
4. Step 4: Simplify right side
   3,686,684x = 64,314,561,572,496
5. Step 5: Solve for x
   x = 64,314,561,572,496/3,686,684
6. Step 6: Final answer
   x = 17,445,097.43