Finding the Third Proportional to 315,885 and 745,697.25

Step by Step Solution

1. Step 1: Write the proportion equation
   315,885 : 745,697.25 = 745,697.25 : x
2. Step 2: Convert to fraction form
   315,885/745,697.25 = 745,697.25/x
3. Step 3: Cross multiply
   315,885x = 745,697.25 × 745,697.25
4. Step 4: Simplify right side
   315,885x = 556,064,388,657.56
5. Step 5: Solve for x
   x = 556,064,388,657.56/315,885
6. Step 6: Final answer
   x = 1,760,338.06