Finding the Third Proportional to 1,271,616 and 1,782,431

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,616 : 1,782,431 = 1,782,431 : x
2. Step 2: Convert to fraction form
   1,271,616/1,782,431 = 1,782,431/x
3. Step 3: Cross multiply
   1,271,616x = 1,782,431 × 1,782,431
4. Step 4: Simplify right side
   1,271,616x = 3,177,060,269,761
5. Step 5: Solve for x
   x = 3,177,060,269,761/1,271,616
6. Step 6: Final answer
   x = 2,498,443.14