Finding the Third Proportional to 147,123 and 311,901

Step by Step Solution

1. Step 1: Write the proportion equation
   147,123 : 311,901 = 311,901 : x
2. Step 2: Convert to fraction form
   147,123/311,901 = 311,901/x
3. Step 3: Cross multiply
   147,123x = 311,901 × 311,901
4. Step 4: Simplify right side
   147,123x = 97,282,233,801
5. Step 5: Solve for x
   x = 97,282,233,801/147,123
6. Step 6: Final answer
   x = 661,230.63