Finding the Third Proportional to 3,867,519 and 8,196,069

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867,519 : 8,196,069 = 8,196,069 : x
2. Step 2: Convert to fraction form
   3,867,519/8,196,069 = 8,196,069/x
3. Step 3: Cross multiply
   3,867,519x = 8,196,069 × 8,196,069
4. Step 4: Simplify right side
   3,867,519x = 67,175,547,052,761
5. Step 5: Solve for x
   x = 67,175,547,052,761/3,867,519
6. Step 6: Final answer
   x = 17,369,157.61