Finding the Third Proportional to 300,930 and 673,156

Step by Step Solution

1. Step 1: Write the proportion equation
   300,930 : 673,156 = 673,156 : x
2. Step 2: Convert to fraction form
   300,930/673,156 = 673,156/x
3. Step 3: Cross multiply
   300,930x = 673,156 × 673,156
4. Step 4: Simplify right side
   300,930x = 453,139,000,336
5. Step 5: Solve for x
   x = 453,139,000,336/300,930
6. Step 6: Final answer
   x = 1,505,795.37