Finding the Third Proportional to 1,105,784 and 1,668,821

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,784 : 1,668,821 = 1,668,821 : x
2. Step 2: Convert to fraction form
   1,105,784/1,668,821 = 1,668,821/x
3. Step 3: Cross multiply
   1,105,784x = 1,668,821 × 1,668,821
4. Step 4: Simplify right side
   1,105,784x = 2,784,963,530,041
5. Step 5: Solve for x
   x = 2,784,963,530,041/1,105,784
6. Step 6: Final answer
   x = 2,518,542.08