Finding the Third Proportional to 322,464 and 483,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   322,464 : 483,640.50 = 483,640.50 : x
2. Step 2: Convert to fraction form
   322,464/483,640.50 = 483,640.50/x
3. Step 3: Cross multiply
   322,464x = 483,640.50 × 483,640.50
4. Step 4: Simplify right side
   322,464x = 233,908,133,240.25
5. Step 5: Solve for x
   x = 233,908,133,240.25/322,464
6. Step 6: Final answer
   x = 725,377.51