Finding the Third Proportional to 612,150 and 1,322,661

Step by Step Solution

1. Step 1: Write the proportion equation
   612,150 : 1,322,661 = 1,322,661 : x
2. Step 2: Convert to fraction form
   612,150/1,322,661 = 1,322,661/x
3. Step 3: Cross multiply
   612,150x = 1,322,661 × 1,322,661
4. Step 4: Simplify right side
   612,150x = 1,749,432,120,921
5. Step 5: Solve for x
   x = 1,749,432,120,921/612,150
6. Step 6: Final answer
   x = 2,857,848.76