Finding the Third Proportional to 91,260 and 196,146

Step by Step Solution

1. Step 1: Write the proportion equation
   91,260 : 196,146 = 196,146 : x
2. Step 2: Convert to fraction form
   91,260/196,146 = 196,146/x
3. Step 3: Cross multiply
   91,260x = 196,146 × 196,146
4. Step 4: Simplify right side
   91,260x = 38,473,253,316
5. Step 5: Solve for x
   x = 38,473,253,316/91,260
6. Step 6: Final answer
   x = 421,578.49