Finding the Third Proportional to 400,092 and 619,308

Step by Step Solution

1. Step 1: Write the proportion equation
   400,092 : 619,308 = 619,308 : x
2. Step 2: Convert to fraction form
   400,092/619,308 = 619,308/x
3. Step 3: Cross multiply
   400,092x = 619,308 × 619,308
4. Step 4: Simplify right side
   400,092x = 383,542,398,864
5. Step 5: Solve for x
   x = 383,542,398,864/400,092
6. Step 6: Final answer
   x = 958,635.51