Finding the Third Proportional to 147,180 and 311,892

Step by Step Solution

1. Step 1: Write the proportion equation
   147,180 : 311,892 = 311,892 : x
2. Step 2: Convert to fraction form
   147,180/311,892 = 311,892/x
3. Step 3: Cross multiply
   147,180x = 311,892 × 311,892
4. Step 4: Simplify right side
   147,180x = 97,276,619,664
5. Step 5: Solve for x
   x = 97,276,619,664/147,180
6. Step 6: Final answer
   x = 660,936.40