Finding the Third Proportional to 326,830 and 700,316

Step by Step Solution

1. Step 1: Write the proportion equation
   326,830 : 700,316 = 700,316 : x
2. Step 2: Convert to fraction form
   326,830/700,316 = 700,316/x
3. Step 3: Cross multiply
   326,830x = 700,316 × 700,316
4. Step 4: Simplify right side
   326,830x = 490,442,499,856
5. Step 5: Solve for x
   x = 490,442,499,856/326,830
6. Step 6: Final answer
   x = 1,500,604.29