Finding the Third Proportional to 91,178 and 196,932

Step by Step Solution

1. Step 1: Write the proportion equation
   91,178 : 196,932 = 196,932 : x
2. Step 2: Convert to fraction form
   91,178/196,932 = 196,932/x
3. Step 3: Cross multiply
   91,178x = 196,932 × 196,932
4. Step 4: Simplify right side
   91,178x = 38,782,212,624
5. Step 5: Solve for x
   x = 38,782,212,624/91,178
6. Step 6: Final answer
   x = 425,346.16