Finding the Third Proportional to 1,616,810 and 3,520,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616,810 : 3,520,666 = 3,520,666 : x
2. Step 2: Convert to fraction form
   1,616,810/3,520,666 = 3,520,666/x
3. Step 3: Cross multiply
   1,616,810x = 3,520,666 × 3,520,666
4. Step 4: Simplify right side
   1,616,810x = 12,395,089,083,556
5. Step 5: Solve for x
   x = 12,395,089,083,556/1,616,810
6. Step 6: Final answer
   x = 7,666,385.71