Finding the Third Proportional to 3,880,656 and 8,163,487

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,656 : 8,163,487 = 8,163,487 : x
2. Step 2: Convert to fraction form
   3,880,656/8,163,487 = 8,163,487/x
3. Step 3: Cross multiply
   3,880,656x = 8,163,487 × 8,163,487
4. Step 4: Simplify right side
   3,880,656x = 66,642,519,999,169
5. Step 5: Solve for x
   x = 66,642,519,999,169/3,880,656
6. Step 6: Final answer
   x = 17,173,003.74