Finding the Third Proportional to 1,664,570 and 3,637,345

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,570 : 3,637,345 = 3,637,345 : x
2. Step 2: Convert to fraction form
   1,664,570/3,637,345 = 3,637,345/x
3. Step 3: Cross multiply
   1,664,570x = 3,637,345 × 3,637,345
4. Step 4: Simplify right side
   1,664,570x = 13,230,278,649,025
5. Step 5: Solve for x
   x = 13,230,278,649,025/1,664,570
6. Step 6: Final answer
   x = 7,948,165.98