Finding the Third Proportional to 1,689,453 and 3,498,664

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,453 : 3,498,664 = 3,498,664 : x
2. Step 2: Convert to fraction form
   1,689,453/3,498,664 = 3,498,664/x
3. Step 3: Cross multiply
   1,689,453x = 3,498,664 × 3,498,664
4. Step 4: Simplify right side
   1,689,453x = 12,240,649,784,896
5. Step 5: Solve for x
   x = 12,240,649,784,896/1,689,453
6. Step 6: Final answer
   x = 7,245,333.13