Finding the Third Proportional to 89,118 and 192,780

Step by Step Solution

1. Step 1: Write the proportion equation
   89,118 : 192,780 = 192,780 : x
2. Step 2: Convert to fraction form
   89,118/192,780 = 192,780/x
3. Step 3: Cross multiply
   89,118x = 192,780 × 192,780
4. Step 4: Simplify right side
   89,118x = 37,164,128,400
5. Step 5: Solve for x
   x = 37,164,128,400/89,118
6. Step 6: Final answer
   x = 417,021.57