Finding the Third Proportional to 1,047,128 and 2,279,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,128 : 2,279,648 = 2,279,648 : x
2. Step 2: Convert to fraction form
   1,047,128/2,279,648 = 2,279,648/x
3. Step 3: Cross multiply
   1,047,128x = 2,279,648 × 2,279,648
4. Step 4: Simplify right side
   1,047,128x = 5,196,795,003,904
5. Step 5: Solve for x
   x = 5,196,795,003,904/1,047,128
6. Step 6: Final answer
   x = 4,962,903.30