Finding the Third Proportional to 664,270 and 1,031,399

Step by Step Solution

1. Step 1: Write the proportion equation
   664,270 : 1,031,399 = 1,031,399 : x
2. Step 2: Convert to fraction form
   664,270/1,031,399 = 1,031,399/x
3. Step 3: Cross multiply
   664,270x = 1,031,399 × 1,031,399
4. Step 4: Simplify right side
   664,270x = 1,063,783,897,201
5. Step 5: Solve for x
   x = 1,063,783,897,201/664,270
6. Step 6: Final answer
   x = 1,601,433.00