Finding the Third Proportional to 412,863 and 581,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   412,863 : 581,404.50 = 581,404.50 : x
2. Step 2: Convert to fraction form
   412,863/581,404.50 = 581,404.50/x
3. Step 3: Cross multiply
   412,863x = 581,404.50 × 581,404.50
4. Step 4: Simplify right side
   412,863x = 338,031,192,620.25
5. Step 5: Solve for x
   x = 338,031,192,620.25/412,863
6. Step 6: Final answer
   x = 818,749.06