Finding the Third Proportional to 677,758 and 903,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   677,758 : 903,574.50 = 903,574.50 : x
2. Step 2: Convert to fraction form
   677,758/903,574.50 = 903,574.50/x
3. Step 3: Cross multiply
   677,758x = 903,574.50 × 903,574.50
4. Step 4: Simplify right side
   677,758x = 816,446,877,050.25
5. Step 5: Solve for x
   x = 816,446,877,050.25/677,758
6. Step 6: Final answer
   x = 1,204,628.90