Finding the Third Proportional to 1,329,869 and 2,106,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,329,869 : 2,106,138 = 2,106,138 : x
2. Step 2: Convert to fraction form
   1,329,869/2,106,138 = 2,106,138/x
3. Step 3: Cross multiply
   1,329,869x = 2,106,138 × 2,106,138
4. Step 4: Simplify right side
   1,329,869x = 4,435,817,275,044
5. Step 5: Solve for x
   x = 4,435,817,275,044/1,329,869
6. Step 6: Final answer
   x = 3,335,529.50