Finding the Third Proportional to 90,960 and 196,866

Step by Step Solution

1. Step 1: Write the proportion equation
   90,960 : 196,866 = 196,866 : x
2. Step 2: Convert to fraction form
   90,960/196,866 = 196,866/x
3. Step 3: Cross multiply
   90,960x = 196,866 × 196,866
4. Step 4: Simplify right side
   90,960x = 38,756,221,956
5. Step 5: Solve for x
   x = 38,756,221,956/90,960
6. Step 6: Final answer
   x = 426,079.84