Finding the Third Proportional to 300,648 and 483,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,648 : 483,553.50 = 483,553.50 : x
2. Step 2: Convert to fraction form
   300,648/483,553.50 = 483,553.50/x
3. Step 3: Cross multiply
   300,648x = 483,553.50 × 483,553.50
4. Step 4: Simplify right side
   300,648x = 233,823,987,362.25
5. Step 5: Solve for x
   x = 233,823,987,362.25/300,648
6. Step 6: Final answer
   x = 777,733.39