Finding the Third Proportional to 91,863.50 and 196,849

Step by Step Solution

1. Step 1: Write the proportion equation
   91,863.50 : 196,849 = 196,849 : x
2. Step 2: Convert to fraction form
   91,863.50/196,849 = 196,849/x
3. Step 3: Cross multiply
   91,863.50x = 196,849 × 196,849
4. Step 4: Simplify right side
   91,863.50x = 38,749,528,801
5. Step 5: Solve for x
   x = 38,749,528,801/91,863.50
6. Step 6: Final answer
   x = 421,816.38