Finding the Third Proportional to 1,271,615 and 1,782,429

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,615 : 1,782,429 = 1,782,429 : x
2. Step 2: Convert to fraction form
   1,271,615/1,782,429 = 1,782,429/x
3. Step 3: Cross multiply
   1,271,615x = 1,782,429 × 1,782,429
4. Step 4: Simplify right side
   1,271,615x = 3,177,053,140,041
5. Step 5: Solve for x
   x = 3,177,053,140,041/1,271,615
6. Step 6: Final answer
   x = 2,498,439.50