Finding the Third Proportional to 619,438 and 1,313,306

Step by Step Solution

1. Step 1: Write the proportion equation
   619,438 : 1,313,306 = 1,313,306 : x
2. Step 2: Convert to fraction form
   619,438/1,313,306 = 1,313,306/x
3. Step 3: Cross multiply
   619,438x = 1,313,306 × 1,313,306
4. Step 4: Simplify right side
   619,438x = 1,724,772,649,636
5. Step 5: Solve for x
   x = 1,724,772,649,636/619,438
6. Step 6: Final answer
   x = 2,784,415.31