Finding the Third Proportional to 622,896 and 1,355,142

Step by Step Solution

1. Step 1: Write the proportion equation
   622,896 : 1,355,142 = 1,355,142 : x
2. Step 2: Convert to fraction form
   622,896/1,355,142 = 1,355,142/x
3. Step 3: Cross multiply
   622,896x = 1,355,142 × 1,355,142
4. Step 4: Simplify right side
   622,896x = 1,836,409,840,164
5. Step 5: Solve for x
   x = 1,836,409,840,164/622,896
6. Step 6: Final answer
   x = 2,948,180.50