Finding the Third Proportional to 91,242 and 196,068

Step by Step Solution

1. Step 1: Write the proportion equation
   91,242 : 196,068 = 196,068 : x
2. Step 2: Convert to fraction form
   91,242/196,068 = 196,068/x
3. Step 3: Cross multiply
   91,242x = 196,068 × 196,068
4. Step 4: Simplify right side
   91,242x = 38,442,660,624
5. Step 5: Solve for x
   x = 38,442,660,624/91,242
6. Step 6: Final answer
   x = 421,326.37