Finding the Third Proportional to 2,145,322 and 3,180,876

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,322 : 3,180,876 = 3,180,876 : x
2. Step 2: Convert to fraction form
   2,145,322/3,180,876 = 3,180,876/x
3. Step 3: Cross multiply
   2,145,322x = 3,180,876 × 3,180,876
4. Step 4: Simplify right side
   2,145,322x = 10,117,972,127,376
5. Step 5: Solve for x
   x = 10,117,972,127,376/2,145,322
6. Step 6: Final answer
   x = 4,716,295.33