Finding the Third Proportional to 612,156 and 1,322,676

Step by Step Solution

1. Step 1: Write the proportion equation
   612,156 : 1,322,676 = 1,322,676 : x
2. Step 2: Convert to fraction form
   612,156/1,322,676 = 1,322,676/x
3. Step 3: Cross multiply
   612,156x = 1,322,676 × 1,322,676
4. Step 4: Simplify right side
   612,156x = 1,749,471,800,976
5. Step 5: Solve for x
   x = 1,749,471,800,976/612,156
6. Step 6: Final answer
   x = 2,857,885.57