Finding the Third Proportional to 1,639,590 and 3,562,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,590 : 3,562,860 = 3,562,860 : x
2. Step 2: Convert to fraction form
   1,639,590/3,562,860 = 3,562,860/x
3. Step 3: Cross multiply
   1,639,590x = 3,562,860 × 3,562,860
4. Step 4: Simplify right side
   1,639,590x = 12,693,971,379,600
5. Step 5: Solve for x
   x = 12,693,971,379,600/1,639,590
6. Step 6: Final answer
   x = 7,742,161.99