Finding the Third Proportional to 131,710 and 279,819

Step by Step Solution

1. Step 1: Write the proportion equation
   131,710 : 279,819 = 279,819 : x
2. Step 2: Convert to fraction form
   131,710/279,819 = 279,819/x
3. Step 3: Cross multiply
   131,710x = 279,819 × 279,819
4. Step 4: Simplify right side
   131,710x = 78,298,672,761
5. Step 5: Solve for x
   x = 78,298,672,761/131,710
6. Step 6: Final answer
   x = 594,477.81