Finding the Third Proportional to 129,173 and 196,494

Step by Step Solution

1. Step 1: Write the proportion equation
   129,173 : 196,494 = 196,494 : x
2. Step 2: Convert to fraction form
   129,173/196,494 = 196,494/x
3. Step 3: Cross multiply
   129,173x = 196,494 × 196,494
4. Step 4: Simplify right side
   129,173x = 38,609,892,036
5. Step 5: Solve for x
   x = 38,609,892,036/129,173
6. Step 6: Final answer
   x = 298,900.64