Finding the Third Proportional to 131,482 and 287,844

Step by Step Solution

1. Step 1: Write the proportion equation
   131,482 : 287,844 = 287,844 : x
2. Step 2: Convert to fraction form
   131,482/287,844 = 287,844/x
3. Step 3: Cross multiply
   131,482x = 287,844 × 287,844
4. Step 4: Simplify right side
   131,482x = 82,854,168,336
5. Step 5: Solve for x
   x = 82,854,168,336/131,482
6. Step 6: Final answer
   x = 630,155.98