Finding the Third Proportional to 1,858,266 and 3,939,822

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,266 : 3,939,822 = 3,939,822 : x
2. Step 2: Convert to fraction form
   1,858,266/3,939,822 = 3,939,822/x
3. Step 3: Cross multiply
   1,858,266x = 3,939,822 × 3,939,822
4. Step 4: Simplify right side
   1,858,266x = 15,522,197,391,684
5. Step 5: Solve for x
   x = 15,522,197,391,684/1,858,266
6. Step 6: Final answer
   x = 8,353,054.62