Finding the Third Proportional to 311,736 and 483,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   311,736 : 483,643.50 = 483,643.50 : x
2. Step 2: Convert to fraction form
   311,736/483,643.50 = 483,643.50/x
3. Step 3: Cross multiply
   311,736x = 483,643.50 × 483,643.50
4. Step 4: Simplify right side
   311,736x = 233,911,035,092.25
5. Step 5: Solve for x
   x = 233,911,035,092.25/311,736
6. Step 6: Final answer
   x = 750,349.77