Finding the Third Proportional to 1,616,808 and 3,520,661

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616,808 : 3,520,661 = 3,520,661 : x
2. Step 2: Convert to fraction form
   1,616,808/3,520,661 = 3,520,661/x
3. Step 3: Cross multiply
   1,616,808x = 3,520,661 × 3,520,661
4. Step 4: Simplify right side
   1,616,808x = 12,395,053,876,921
5. Step 5: Solve for x
   x = 12,395,053,876,921/1,616,808
6. Step 6: Final answer
   x = 7,666,373.42