Finding the Third Proportional to 1,040,138 and 2,235,470

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040,138 : 2,235,470 = 2,235,470 : x
2. Step 2: Convert to fraction form
   1,040,138/2,235,470 = 2,235,470/x
3. Step 3: Cross multiply
   1,040,138x = 2,235,470 × 2,235,470
4. Step 4: Simplify right side
   1,040,138x = 4,997,326,120,900
5. Step 5: Solve for x
   x = 4,997,326,120,900/1,040,138
6. Step 6: Final answer
   x = 4,804,483.75