Finding the Third Proportional to 409,606.88 and 635,976.56

Step by Step Solution

1. Step 1: Write the proportion equation
   409,606.88 : 635,976.56 = 635,976.56 : x
2. Step 2: Convert to fraction form
   409,606.88/635,976.56 = 635,976.56/x
3. Step 3: Cross multiply
   409,606.88x = 635,976.56 × 635,976.56
4. Step 4: Simplify right side
   409,606.88x = 404,466,188,049.32
5. Step 5: Solve for x
   x = 404,466,188,049.32/409,606.88
6. Step 6: Final answer
   x = 987,449.71