Finding the Third Proportional to 1,028,172 and 2,180,760

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028,172 : 2,180,760 = 2,180,760 : x
2. Step 2: Convert to fraction form
   1,028,172/2,180,760 = 2,180,760/x
3. Step 3: Cross multiply
   1,028,172x = 2,180,760 × 2,180,760
4. Step 4: Simplify right side
   1,028,172x = 4,755,714,177,600
5. Step 5: Solve for x
   x = 4,755,714,177,600/1,028,172
6. Step 6: Final answer
   x = 4,625,407.21