Finding the Third Proportional to 149,262.75 and 321,625.69

Step by Step Solution

1. Step 1: Write the proportion equation
   149,262.75 : 321,625.69 = 321,625.69 : x
2. Step 2: Convert to fraction form
   149,262.75/321,625.69 = 321,625.69/x
3. Step 3: Cross multiply
   149,262.75x = 321,625.69 × 321,625.69
4. Step 4: Simplify right side
   149,262.75x = 103,443,082,859.85
5. Step 5: Solve for x
   x = 103,443,082,859.85/149,262.75
6. Step 6: Final answer
   x = 693,026.78