Finding the Third Proportional to 3,880,714 and 8,163,580

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,714 : 8,163,580 = 8,163,580 : x
2. Step 2: Convert to fraction form
   3,880,714/8,163,580 = 8,163,580/x
3. Step 3: Cross multiply
   3,880,714x = 8,163,580 × 8,163,580
4. Step 4: Simplify right side
   3,880,714x = 66,644,038,416,400
5. Step 5: Solve for x
   x = 66,644,038,416,400/3,880,714
6. Step 6: Final answer
   x = 17,173,138.35