Finding the Third Proportional to 131,510.75 and 279,424

Step by Step Solution

1. Step 1: Write the proportion equation
   131,510.75 : 279,424 = 279,424 : x
2. Step 2: Convert to fraction form
   131,510.75/279,424 = 279,424/x
3. Step 3: Cross multiply
   131,510.75x = 279,424 × 279,424
4. Step 4: Simplify right side
   131,510.75x = 78,077,771,776
5. Step 5: Solve for x
   x = 78,077,771,776/131,510.75
6. Step 6: Final answer
   x = 593,698.78