Finding the Third Proportional to 89,028 and 193,608

Step by Step Solution

1. Step 1: Write the proportion equation
   89,028 : 193,608 = 193,608 : x
2. Step 2: Convert to fraction form
   89,028/193,608 = 193,608/x
3. Step 3: Cross multiply
   89,028x = 193,608 × 193,608
4. Step 4: Simplify right side
   89,028x = 37,484,057,664
5. Step 5: Solve for x
   x = 37,484,057,664/89,028
6. Step 6: Final answer
   x = 421,036.73