Finding the Third Proportional to 1,694,405 and 3,664,131

Step by Step Solution

1. Step 1: Write the proportion equation
   1,694,405 : 3,664,131 = 3,664,131 : x
2. Step 2: Convert to fraction form
   1,694,405/3,664,131 = 3,664,131/x
3. Step 3: Cross multiply
   1,694,405x = 3,664,131 × 3,664,131
4. Step 4: Simplify right side
   1,694,405x = 13,425,855,985,161
5. Step 5: Solve for x
   x = 13,425,855,985,161/1,694,405
6. Step 6: Final answer
   x = 7,923,640.44