Finding the Third Proportional to 483,786.50 and 676,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   483,786.50 : 676,724.50 = 676,724.50 : x
2. Step 2: Convert to fraction form
   483,786.50/676,724.50 = 676,724.50/x
3. Step 3: Cross multiply
   483,786.50x = 676,724.50 × 676,724.50
4. Step 4: Simplify right side
   483,786.50x = 457,956,048,900.25
5. Step 5: Solve for x
   x = 457,956,048,900.25/483,786.50
6. Step 6: Final answer
   x = 946,607.75