Finding the Third Proportional to 60,280 and 131,276

Step by Step Solution

1. Step 1: Write the proportion equation
   60,280 : 131,276 = 131,276 : x
2. Step 2: Convert to fraction form
   60,280/131,276 = 131,276/x
3. Step 3: Cross multiply
   60,280x = 131,276 × 131,276
4. Step 4: Simplify right side
   60,280x = 17,233,388,176
5. Step 5: Solve for x
   x = 17,233,388,176/60,280
6. Step 6: Final answer
   x = 285,888.99