Finding the Third Proportional to 410,355 and 613,889.25

Step by Step Solution

1. Step 1: Write the proportion equation
   410,355 : 613,889.25 = 613,889.25 : x
2. Step 2: Convert to fraction form
   410,355/613,889.25 = 613,889.25/x
3. Step 3: Cross multiply
   410,355x = 613,889.25 × 613,889.25
4. Step 4: Simplify right side
   410,355x = 376,860,011,265.56
5. Step 5: Solve for x
   x = 376,860,011,265.56/410,355
6. Step 6: Final answer
   x = 918,375.58