Finding the Third Proportional to 131,475 and 287,826

Step by Step Solution

1. Step 1: Write the proportion equation
   131,475 : 287,826 = 287,826 : x
2. Step 2: Convert to fraction form
   131,475/287,826 = 287,826/x
3. Step 3: Cross multiply
   131,475x = 287,826 × 287,826
4. Step 4: Simplify right side
   131,475x = 82,843,806,276
5. Step 5: Solve for x
   x = 82,843,806,276/131,475
6. Step 6: Final answer
   x = 630,110.72