Finding the Third Proportional to 1,004,128 and 2,207,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004,128 : 2,207,288 = 2,207,288 : x
2. Step 2: Convert to fraction form
   1,004,128/2,207,288 = 2,207,288/x
3. Step 3: Cross multiply
   1,004,128x = 2,207,288 × 2,207,288
4. Step 4: Simplify right side
   1,004,128x = 4,872,120,314,944
5. Step 5: Solve for x
   x = 4,872,120,314,944/1,004,128
6. Step 6: Final answer
   x = 4,852,090.88