Finding the Third Proportional to 1,959,640 and 4,199,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,959,640 : 4,199,216 = 4,199,216 : x
2. Step 2: Convert to fraction form
   1,959,640/4,199,216 = 4,199,216/x
3. Step 3: Cross multiply
   1,959,640x = 4,199,216 × 4,199,216
4. Step 4: Simplify right side
   1,959,640x = 17,633,415,014,656
5. Step 5: Solve for x
   x = 17,633,415,014,656/1,959,640
6. Step 6: Final answer
   x = 8,998,293.06