Finding the Third Proportional to 622,348 and 1,357,320

Step by Step Solution

1. Step 1: Write the proportion equation
   622,348 : 1,357,320 = 1,357,320 : x
2. Step 2: Convert to fraction form
   622,348/1,357,320 = 1,357,320/x
3. Step 3: Cross multiply
   622,348x = 1,357,320 × 1,357,320
4. Step 4: Simplify right side
   622,348x = 1,842,317,582,400
5. Step 5: Solve for x
   x = 1,842,317,582,400/622,348
6. Step 6: Final answer
   x = 2,960,269.15