Finding the Third Proportional to 131,483.25 and 287,995.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,483.25 : 287,995.50 = 287,995.50 : x
2. Step 2: Convert to fraction form
   131,483.25/287,995.50 = 287,995.50/x
3. Step 3: Cross multiply
   131,483.25x = 287,995.50 × 287,995.50
4. Step 4: Simplify right side
   131,483.25x = 82,941,408,020.25
5. Step 5: Solve for x
   x = 82,941,408,020.25/131,483.25
6. Step 6: Final answer
   x = 630,813.49