Finding the Third Proportional to 1,395,938 and 2,239,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395,938 : 2,239,680 = 2,239,680 : x
2. Step 2: Convert to fraction form
   1,395,938/2,239,680 = 2,239,680/x
3. Step 3: Cross multiply
   1,395,938x = 2,239,680 × 2,239,680
4. Step 4: Simplify right side
   1,395,938x = 5,016,166,502,400
5. Step 5: Solve for x
   x = 5,016,166,502,400/1,395,938
6. Step 6: Final answer
   x = 3,593,402.07