Finding the Third Proportional to 59,991 and 131,280

Step by Step Solution

1. Step 1: Write the proportion equation
   59,991 : 131,280 = 131,280 : x
2. Step 2: Convert to fraction form
   59,991/131,280 = 131,280/x
3. Step 3: Cross multiply
   59,991x = 131,280 × 131,280
4. Step 4: Simplify right side
   59,991x = 17,234,438,400
5. Step 5: Solve for x
   x = 17,234,438,400/59,991
6. Step 6: Final answer
   x = 287,283.73