Finding the Third Proportional to 677,634 and 903,389.25

Step by Step Solution

1. Step 1: Write the proportion equation
   677,634 : 903,389.25 = 903,389.25 : x
2. Step 2: Convert to fraction form
   677,634/903,389.25 = 903,389.25/x
3. Step 3: Cross multiply
   677,634x = 903,389.25 × 903,389.25
4. Step 4: Simplify right side
   677,634x = 816,112,137,015.56
5. Step 5: Solve for x
   x = 816,112,137,015.56/677,634
6. Step 6: Final answer
   x = 1,204,355.36