Finding the Third Proportional to 315,883.50 and 745,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,883.50 : 745,693.50 = 745,693.50 : x
2. Step 2: Convert to fraction form
   315,883.50/745,693.50 = 745,693.50/x
3. Step 3: Cross multiply
   315,883.50x = 745,693.50 × 745,693.50
4. Step 4: Simplify right side
   315,883.50x = 556,058,795,942.25
5. Step 5: Solve for x
   x = 556,058,795,942.25/315,883.50
6. Step 6: Final answer
   x = 1,760,328.72