Finding the Third Proportional to 1,271,660 and 1,782,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,660 : 1,782,228 = 1,782,228 : x
2. Step 2: Convert to fraction form
   1,271,660/1,782,228 = 1,782,228/x
3. Step 3: Cross multiply
   1,271,660x = 1,782,228 × 1,782,228
4. Step 4: Simplify right side
   1,271,660x = 3,176,336,643,984
5. Step 5: Solve for x
   x = 3,176,336,643,984/1,271,660
6. Step 6: Final answer
   x = 2,497,787.65