Finding the Third Proportional to 315,010.50 and 740,467.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,010.50 : 740,467.50 = 740,467.50 : x
2. Step 2: Convert to fraction form
   315,010.50/740,467.50 = 740,467.50/x
3. Step 3: Cross multiply
   315,010.50x = 740,467.50 × 740,467.50
4. Step 4: Simplify right side
   315,010.50x = 548,292,118,556.25
5. Step 5: Solve for x
   x = 548,292,118,556.25/315,010.50
6. Step 6: Final answer
   x = 1,740,551.88