Finding the Third Proportional to 150,006 and 316,870

Step by Step Solution

1. Step 1: Write the proportion equation
   150,006 : 316,870 = 316,870 : x
2. Step 2: Convert to fraction form
   150,006/316,870 = 316,870/x
3. Step 3: Cross multiply
   150,006x = 316,870 × 316,870
4. Step 4: Simplify right side
   150,006x = 100,406,596,900
5. Step 5: Solve for x
   x = 100,406,596,900/150,006
6. Step 6: Final answer
   x = 669,350.54