Finding the Third Proportional to 1,138,212 and 2,438,682

Step by Step Solution

1. Step 1: Write the proportion equation
   1,138,212 : 2,438,682 = 2,438,682 : x
2. Step 2: Convert to fraction form
   1,138,212/2,438,682 = 2,438,682/x
3. Step 3: Cross multiply
   1,138,212x = 2,438,682 × 2,438,682
4. Step 4: Simplify right side
   1,138,212x = 5,947,169,897,124
5. Step 5: Solve for x
   x = 5,947,169,897,124/1,138,212
6. Step 6: Final answer
   x = 5,225,010.72