Finding the Third Proportional to 911,450 and 1,963,138

Step by Step Solution

1. Step 1: Write the proportion equation
   911,450 : 1,963,138 = 1,963,138 : x
2. Step 2: Convert to fraction form
   911,450/1,963,138 = 1,963,138/x
3. Step 3: Cross multiply
   911,450x = 1,963,138 × 1,963,138
4. Step 4: Simplify right side
   911,450x = 3,853,910,807,044
5. Step 5: Solve for x
   x = 3,853,910,807,044/911,450
6. Step 6: Final answer
   x = 4,228,329.37