Finding the Third Proportional to 322,458 and 483,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   322,458 : 483,631.50 = 483,631.50 : x
2. Step 2: Convert to fraction form
   322,458/483,631.50 = 483,631.50/x
3. Step 3: Cross multiply
   322,458x = 483,631.50 × 483,631.50
4. Step 4: Simplify right side
   322,458x = 233,899,427,792.25
5. Step 5: Solve for x
   x = 233,899,427,792.25/322,458
6. Step 6: Final answer
   x = 725,364.01