Finding the Third Proportional to 2,240,817 and 3,387,905

Step by Step Solution

1. Step 1: Write the proportion equation
   2,240,817 : 3,387,905 = 3,387,905 : x
2. Step 2: Convert to fraction form
   2,240,817/3,387,905 = 3,387,905/x
3. Step 3: Cross multiply
   2,240,817x = 3,387,905 × 3,387,905
4. Step 4: Simplify right side
   2,240,817x = 11,477,900,289,025
5. Step 5: Solve for x
   x = 11,477,900,289,025/2,240,817
6. Step 6: Final answer
   x = 5,122,194.40