Finding the Third Proportional to 1,270,400 and 2,789,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,270,400 : 2,789,712 = 2,789,712 : x
2. Step 2: Convert to fraction form
   1,270,400/2,789,712 = 2,789,712/x
3. Step 3: Cross multiply
   1,270,400x = 2,789,712 × 2,789,712
4. Step 4: Simplify right side
   1,270,400x = 7,782,493,042,944
5. Step 5: Solve for x
   x = 7,782,493,042,944/1,270,400
6. Step 6: Final answer
   x = 6,126,017.82