Finding the Third Proportional to 1,374,196 and 2,139,821

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374,196 : 2,139,821 = 2,139,821 : x
2. Step 2: Convert to fraction form
   1,374,196/2,139,821 = 2,139,821/x
3. Step 3: Cross multiply
   1,374,196x = 2,139,821 × 2,139,821
4. Step 4: Simplify right side
   1,374,196x = 4,578,833,912,041
5. Step 5: Solve for x
   x = 4,578,833,912,041/1,374,196
6. Step 6: Final answer
   x = 3,332,009.34