Finding the Third Proportional to 612,159 and 1,322,682

Step by Step Solution

1. Step 1: Write the proportion equation
   612,159 : 1,322,682 = 1,322,682 : x
2. Step 2: Convert to fraction form
   612,159/1,322,682 = 1,322,682/x
3. Step 3: Cross multiply
   612,159x = 1,322,682 × 1,322,682
4. Step 4: Simplify right side
   612,159x = 1,749,487,673,124
5. Step 5: Solve for x
   x = 1,749,487,673,124/612,159
6. Step 6: Final answer
   x = 2,857,897.50