Finding the Third Proportional to 1,916,360 and 4,089,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,360 : 4,089,816 = 4,089,816 : x
2. Step 2: Convert to fraction form
   1,916,360/4,089,816 = 4,089,816/x
3. Step 3: Cross multiply
   1,916,360x = 4,089,816 × 4,089,816
4. Step 4: Simplify right side
   1,916,360x = 16,726,594,913,856
5. Step 5: Solve for x
   x = 16,726,594,913,856/1,916,360
6. Step 6: Final answer
   x = 8,728,315.62