Finding the Third Proportional to 131,194 and 287,012

Step by Step Solution

1. Step 1: Write the proportion equation
   131,194 : 287,012 = 287,012 : x
2. Step 2: Convert to fraction form
   131,194/287,012 = 287,012/x
3. Step 3: Cross multiply
   131,194x = 287,012 × 287,012
4. Step 4: Simplify right side
   131,194x = 82,375,888,144
5. Step 5: Solve for x
   x = 82,375,888,144/131,194
6. Step 6: Final answer
   x = 627,893.72