Finding the Third Proportional to 131.30 and 279.84

Step by Step Solution

1. Step 1: Write the proportion equation
   131.30 : 279.84 = 279.84 : x
2. Step 2: Convert to fraction form
   131.30/279.84 = 279.84/x
3. Step 3: Cross multiply
   131.30x = 279.84 × 279.84
4. Step 4: Simplify right side
   131.30x = 78,312.52
5. Step 5: Solve for x
   x = 78,312.52/131.30
6. Step 6: Final answer
   x = 596.45