Finding the Third Proportional to 304,689 and 660,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   304,689 : 660,223.50 = 660,223.50 : x
2. Step 2: Convert to fraction form
   304,689/660,223.50 = 660,223.50/x
3. Step 3: Cross multiply
   304,689x = 660,223.50 × 660,223.50
4. Step 4: Simplify right side
   304,689x = 435,895,069,952.25
5. Step 5: Solve for x
   x = 435,895,069,952.25/304,689
6. Step 6: Final answer
   x = 1,430,622.93