Finding the Third Proportional to 1,858,264 and 3,939,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,264 : 3,939,820 = 3,939,820 : x
2. Step 2: Convert to fraction form
   1,858,264/3,939,820 = 3,939,820/x
3. Step 3: Cross multiply
   1,858,264x = 3,939,820 × 3,939,820
4. Step 4: Simplify right side
   1,858,264x = 15,522,181,632,400
5. Step 5: Solve for x
   x = 15,522,181,632,400/1,858,264
6. Step 6: Final answer
   x = 8,353,055.13