Finding the Third Proportional to 131,070 and 279,308

Step by Step Solution

1. Step 1: Write the proportion equation
   131,070 : 279,308 = 279,308 : x
2. Step 2: Convert to fraction form
   131,070/279,308 = 279,308/x
3. Step 3: Cross multiply
   131,070x = 279,308 × 279,308
4. Step 4: Simplify right side
   131,070x = 78,012,958,864
5. Step 5: Solve for x
   x = 78,012,958,864/131,070
6. Step 6: Final answer
   x = 595,200.72