Finding the Third Proportional to 158,318 and 336,066

Step by Step Solution

1. Step 1: Write the proportion equation
   158,318 : 336,066 = 336,066 : x
2. Step 2: Convert to fraction form
   158,318/336,066 = 336,066/x
3. Step 3: Cross multiply
   158,318x = 336,066 × 336,066
4. Step 4: Simplify right side
   158,318x = 112,940,356,356
5. Step 5: Solve for x
   x = 112,940,356,356/158,318
6. Step 6: Final answer
   x = 713,376.60