Finding the Third Proportional to 1,616,813 and 3,520,669

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616,813 : 3,520,669 = 3,520,669 : x
2. Step 2: Convert to fraction form
   1,616,813/3,520,669 = 3,520,669/x
3. Step 3: Cross multiply
   1,616,813x = 3,520,669 × 3,520,669
4. Step 4: Simplify right side
   1,616,813x = 12,395,110,207,561
5. Step 5: Solve for x
   x = 12,395,110,207,561/1,616,813
6. Step 6: Final answer
   x = 7,666,384.55