Finding the Third Proportional to 200,848.50 and 311,250

Step by Step Solution

1. Step 1: Write the proportion equation
   200,848.50 : 311,250 = 311,250 : x
2. Step 2: Convert to fraction form
   200,848.50/311,250 = 311,250/x
3. Step 3: Cross multiply
   200,848.50x = 311,250 × 311,250
4. Step 4: Simplify right side
   200,848.50x = 96,876,562,500
5. Step 5: Solve for x
   x = 96,876,562,500/200,848.50
6. Step 6: Final answer
   x = 482,336.50