Finding the Third Proportional to 3,880,549 and 8,163,316

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,549 : 8,163,316 = 8,163,316 : x
2. Step 2: Convert to fraction form
   3,880,549/8,163,316 = 8,163,316/x
3. Step 3: Cross multiply
   3,880,549x = 8,163,316 × 8,163,316
4. Step 4: Simplify right side
   3,880,549x = 66,639,728,115,856
5. Step 5: Solve for x
   x = 66,639,728,115,856/3,880,549
6. Step 6: Final answer
   x = 17,172,757.80