Finding the Third Proportional to 1,005,723 and 2,188,566

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,723 : 2,188,566 = 2,188,566 : x
2. Step 2: Convert to fraction form
   1,005,723/2,188,566 = 2,188,566/x
3. Step 3: Cross multiply
   1,005,723x = 2,188,566 × 2,188,566
4. Step 4: Simplify right side
   1,005,723x = 4,789,821,136,356
5. Step 5: Solve for x
   x = 4,789,821,136,356/1,005,723
6. Step 6: Final answer
   x = 4,762,564.98