Finding the Third Proportional to 622,388 and 1,357,424

Step by Step Solution

1. Step 1: Write the proportion equation
   622,388 : 1,357,424 = 1,357,424 : x
2. Step 2: Convert to fraction form
   622,388/1,357,424 = 1,357,424/x
3. Step 3: Cross multiply
   622,388x = 1,357,424 × 1,357,424
4. Step 4: Simplify right side
   622,388x = 1,842,599,915,776
5. Step 5: Solve for x
   x = 1,842,599,915,776/622,388
6. Step 6: Final answer
   x = 2,960,532.52