Finding the Third Proportional to 2,598,912 and 3,999,856

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598,912 : 3,999,856 = 3,999,856 : x
2. Step 2: Convert to fraction form
   2,598,912/3,999,856 = 3,999,856/x
3. Step 3: Cross multiply
   2,598,912x = 3,999,856 × 3,999,856
4. Step 4: Simplify right side
   2,598,912x = 15,998,848,020,736
5. Step 5: Solve for x
   x = 15,998,848,020,736/2,598,912
6. Step 6: Final answer
   x = 6,155,979.13