Finding the Third Proportional to 619,575 and 1,313,469

Step by Step Solution

1. Step 1: Write the proportion equation
   619,575 : 1,313,469 = 1,313,469 : x
2. Step 2: Convert to fraction form
   619,575/1,313,469 = 1,313,469/x
3. Step 3: Cross multiply
   619,575x = 1,313,469 × 1,313,469
4. Step 4: Simplify right side
   619,575x = 1,725,200,813,961
5. Step 5: Solve for x
   x = 1,725,200,813,961/619,575
6. Step 6: Final answer
   x = 2,784,490.68