Finding the Third Proportional to 443,518 and 694,810

Step by Step Solution

1. Step 1: Write the proportion equation
   443,518 : 694,810 = 694,810 : x
2. Step 2: Convert to fraction form
   443,518/694,810 = 694,810/x
3. Step 3: Cross multiply
   443,518x = 694,810 × 694,810
4. Step 4: Simplify right side
   443,518x = 482,760,936,100
5. Step 5: Solve for x
   x = 482,760,936,100/443,518
6. Step 6: Final answer
   x = 1,088,481.04