Finding the Third Proportional to 2,600,388 and 4,042,212

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600,388 : 4,042,212 = 4,042,212 : x
2. Step 2: Convert to fraction form
   2,600,388/4,042,212 = 4,042,212/x
3. Step 3: Cross multiply
   2,600,388x = 4,042,212 × 4,042,212
4. Step 4: Simplify right side
   2,600,388x = 16,339,477,852,944
5. Step 5: Solve for x
   x = 16,339,477,852,944/2,600,388
6. Step 6: Final answer
   x = 6,283,476.87