Finding the Third Proportional to 1,350,738 and 2,138,859

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350,738 : 2,138,859 = 2,138,859 : x
2. Step 2: Convert to fraction form
   1,350,738/2,138,859 = 2,138,859/x
3. Step 3: Cross multiply
   1,350,738x = 2,138,859 × 2,138,859
4. Step 4: Simplify right side
   1,350,738x = 4,574,717,821,881
5. Step 5: Solve for x
   x = 4,574,717,821,881/1,350,738
6. Step 6: Final answer
   x = 3,386,828.40