Finding the Third Proportional to 131,040 and 279,238

Step by Step Solution

1. Step 1: Write the proportion equation
   131,040 : 279,238 = 279,238 : x
2. Step 2: Convert to fraction form
   131,040/279,238 = 279,238/x
3. Step 3: Cross multiply
   131,040x = 279,238 × 279,238
4. Step 4: Simplify right side
   131,040x = 77,973,860,644
5. Step 5: Solve for x
   x = 77,973,860,644/131,040
6. Step 6: Final answer
   x = 595,038.62