Finding the Third Proportional to 91,857.75 and 196,837.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,857.75 : 196,837.38 = 196,837.38 : x
2. Step 2: Convert to fraction form
   91,857.75/196,837.38 = 196,837.38/x
3. Step 3: Cross multiply
   91,857.75x = 196,837.38 × 196,837.38
4. Step 4: Simplify right side
   91,857.75x = 38,744,952,196.89
5. Step 5: Solve for x
   x = 38,744,952,196.89/91,857.75
6. Step 6: Final answer
   x = 421,792.96