Finding the Third Proportional to 1,374,219 and 2,139,858

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374,219 : 2,139,858 = 2,139,858 : x
2. Step 2: Convert to fraction form
   1,374,219/2,139,858 = 2,139,858/x
3. Step 3: Cross multiply
   1,374,219x = 2,139,858 × 2,139,858
4. Step 4: Simplify right side
   1,374,219x = 4,578,992,260,164
5. Step 5: Solve for x
   x = 4,578,992,260,164/1,374,219
6. Step 6: Final answer
   x = 3,332,068.80