Finding the Third Proportional to 142,409 and 336,171

Step by Step Solution

1. Step 1: Write the proportion equation
   142,409 : 336,171 = 336,171 : x
2. Step 2: Convert to fraction form
   142,409/336,171 = 336,171/x
3. Step 3: Cross multiply
   142,409x = 336,171 × 336,171
4. Step 4: Simplify right side
   142,409x = 113,010,941,241
5. Step 5: Solve for x
   x = 113,010,941,241/142,409
6. Step 6: Final answer
   x = 793,566.01