Finding the Third Proportional to 3,880,612 and 8,163,402

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,612 : 8,163,402 = 8,163,402 : x
2. Step 2: Convert to fraction form
   3,880,612/8,163,402 = 8,163,402/x
3. Step 3: Cross multiply
   3,880,612x = 8,163,402 × 8,163,402
4. Step 4: Simplify right side
   3,880,612x = 66,641,132,213,604
5. Step 5: Solve for x
   x = 66,641,132,213,604/3,880,612
6. Step 6: Final answer
   x = 17,172,840.83