Finding the Third Proportional to 291,262 and 441,404

Step by Step Solution

1. Step 1: Write the proportion equation
   291,262 : 441,404 = 441,404 : x
2. Step 2: Convert to fraction form
   291,262/441,404 = 441,404/x
3. Step 3: Cross multiply
   291,262x = 441,404 × 441,404
4. Step 4: Simplify right side
   291,262x = 194,837,491,216
5. Step 5: Solve for x
   x = 194,837,491,216/291,262
6. Step 6: Final answer
   x = 668,942.37