Finding the Third Proportional to 3,880,872 and 8,163,963

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,872 : 8,163,963 = 8,163,963 : x
2. Step 2: Convert to fraction form
   3,880,872/8,163,963 = 8,163,963/x
3. Step 3: Cross multiply
   3,880,872x = 8,163,963 × 8,163,963
4. Step 4: Simplify right side
   3,880,872x = 66,650,291,865,369
5. Step 5: Solve for x
   x = 66,650,291,865,369/3,880,872
6. Step 6: Final answer
   x = 17,174,050.54