Finding the Third Proportional to 1,620,324 and 3,545,694

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,324 : 3,545,694 = 3,545,694 : x
2. Step 2: Convert to fraction form
   1,620,324/3,545,694 = 3,545,694/x
3. Step 3: Cross multiply
   1,620,324x = 3,545,694 × 3,545,694
4. Step 4: Simplify right side
   1,620,324x = 12,571,945,941,636
5. Step 5: Solve for x
   x = 12,571,945,941,636/1,620,324
6. Step 6: Final answer
   x = 7,758,908.68