Finding the Third Proportional to 917,868 and 1,945,144

Step by Step Solution

1. Step 1: Write the proportion equation
   917,868 : 1,945,144 = 1,945,144 : x
2. Step 2: Convert to fraction form
   917,868/1,945,144 = 1,945,144/x
3. Step 3: Cross multiply
   917,868x = 1,945,144 × 1,945,144
4. Step 4: Simplify right side
   917,868x = 3,783,585,180,736
5. Step 5: Solve for x
   x = 3,783,585,180,736/917,868
6. Step 6: Final answer
   x = 4,122,145.21