Finding the Third Proportional to 131,249 and 287,922

Step by Step Solution

1. Step 1: Write the proportion equation
   131,249 : 287,922 = 287,922 : x
2. Step 2: Convert to fraction form
   131,249/287,922 = 287,922/x
3. Step 3: Cross multiply
   131,249x = 287,922 × 287,922
4. Step 4: Simplify right side
   131,249x = 82,899,078,084
5. Step 5: Solve for x
   x = 82,899,078,084/131,249
6. Step 6: Final answer
   x = 631,616.84