Finding the Third Proportional to 911,143.69 and 1,968,409.69

Step by Step Solution

1. Step 1: Write the proportion equation
   911,143.69 : 1,968,409.69 = 1,968,409.69 : x
2. Step 2: Convert to fraction form
   911,143.69/1,968,409.69 = 1,968,409.69/x
3. Step 3: Cross multiply
   911,143.69x = 1,968,409.69 × 1,968,409.69
4. Step 4: Simplify right side
   911,143.69x = 3,874,636,697,843.85
5. Step 5: Solve for x
   x = 3,874,636,697,843.85/911,143.69
6. Step 6: Final answer
   x = 4,252,497.99