Finding the Third Proportional to 490,276 and 693,766

Step by Step Solution

1. Step 1: Write the proportion equation
   490,276 : 693,766 = 693,766 : x
2. Step 2: Convert to fraction form
   490,276/693,766 = 693,766/x
3. Step 3: Cross multiply
   490,276x = 693,766 × 693,766
4. Step 4: Simplify right side
   490,276x = 481,311,262,756
5. Step 5: Solve for x
   x = 481,311,262,756/490,276
6. Step 6: Final answer
   x = 981,714.92