Finding the Third Proportional to 1,350,458 and 2,138,441

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350,458 : 2,138,441 = 2,138,441 : x
2. Step 2: Convert to fraction form
   1,350,458/2,138,441 = 2,138,441/x
3. Step 3: Cross multiply
   1,350,458x = 2,138,441 × 2,138,441
4. Step 4: Simplify right side
   1,350,458x = 4,572,929,910,481
5. Step 5: Solve for x
   x = 4,572,929,910,481/1,350,458
6. Step 6: Final answer
   x = 3,386,206.69