Finding the Third Proportional to 3,746,400 and 8,122,666

Step by Step Solution

1. Step 1: Write the proportion equation
   3,746,400 : 8,122,666 = 8,122,666 : x
2. Step 2: Convert to fraction form
   3,746,400/8,122,666 = 8,122,666/x
3. Step 3: Cross multiply
   3,746,400x = 8,122,666 × 8,122,666
4. Step 4: Simplify right side
   3,746,400x = 65,977,702,947,556
5. Step 5: Solve for x
   x = 65,977,702,947,556/3,746,400
6. Step 6: Final answer
   x = 17,610,960.64