Finding the Third Proportional to 315,007.50 and 740,460.75

Step by Step Solution

1. Step 1: Write the proportion equation
   315,007.50 : 740,460.75 = 740,460.75 : x
2. Step 2: Convert to fraction form
   315,007.50/740,460.75 = 740,460.75/x
3. Step 3: Cross multiply
   315,007.50x = 740,460.75 × 740,460.75
4. Step 4: Simplify right side
   315,007.50x = 548,282,122,290.56
5. Step 5: Solve for x
   x = 548,282,122,290.56/315,007.50
6. Step 6: Final answer
   x = 1,740,536.72