Finding the Third Proportional to 1,019,358 and 1,619,439

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019,358 : 1,619,439 = 1,619,439 : x
2. Step 2: Convert to fraction form
   1,019,358/1,619,439 = 1,619,439/x
3. Step 3: Cross multiply
   1,019,358x = 1,619,439 × 1,619,439
4. Step 4: Simplify right side
   1,019,358x = 2,622,582,674,721
5. Step 5: Solve for x
   x = 2,622,582,674,721/1,019,358
6. Step 6: Final answer
   x = 2,572,778.82