Finding the Third Proportional to 2,188,012 and 3,311,178

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,012 : 3,311,178 = 3,311,178 : x
2. Step 2: Convert to fraction form
   2,188,012/3,311,178 = 3,311,178/x
3. Step 3: Cross multiply
   2,188,012x = 3,311,178 × 3,311,178
4. Step 4: Simplify right side
   2,188,012x = 10,963,899,747,684
5. Step 5: Solve for x
   x = 10,963,899,747,684/2,188,012
6. Step 6: Final answer
   x = 5,010,895.62