Finding the Third Proportional to 181,404 and 423,608

Step by Step Solution

1. Step 1: Write the proportion equation
   181,404 : 423,608 = 423,608 : x
2. Step 2: Convert to fraction form
   181,404/423,608 = 423,608/x
3. Step 3: Cross multiply
   181,404x = 423,608 × 423,608
4. Step 4: Simplify right side
   181,404x = 179,443,737,664
5. Step 5: Solve for x
   x = 179,443,737,664/181,404
6. Step 6: Final answer
   x = 989,193.94