Finding the Third Proportional to 2,218,178 and 3,312,483

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,178 : 3,312,483 = 3,312,483 : x
2. Step 2: Convert to fraction form
   2,218,178/3,312,483 = 3,312,483/x
3. Step 3: Cross multiply
   2,218,178x = 3,312,483 × 3,312,483
4. Step 4: Simplify right side
   2,218,178x = 10,972,543,625,289
5. Step 5: Solve for x
   x = 10,972,543,625,289/2,218,178
6. Step 6: Final answer
   x = 4,946,647.03