Finding the Third Proportional to 2,188,008 and 3,311,172

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,008 : 3,311,172 = 3,311,172 : x
2. Step 2: Convert to fraction form
   2,188,008/3,311,172 = 3,311,172/x
3. Step 3: Cross multiply
   2,188,008x = 3,311,172 × 3,311,172
4. Step 4: Simplify right side
   2,188,008x = 10,963,860,013,584
5. Step 5: Solve for x
   x = 10,963,860,013,584/2,188,008
6. Step 6: Final answer
   x = 5,010,886.62