Finding the Third Proportional to 158,836.78 and 309,691.69

Step by Step Solution

1. Step 1: Write the proportion equation
   158,836.78 : 309,691.69 = 309,691.69 : x
2. Step 2: Convert to fraction form
   158,836.78/309,691.69 = 309,691.69/x
3. Step 3: Cross multiply
   158,836.78x = 309,691.69 × 309,691.69
4. Step 4: Simplify right side
   158,836.78x = 95,908,941,306.60
5. Step 5: Solve for x
   x = 95,908,941,306.60/158,836.78
6. Step 6: Final answer
   x = 603,820.73