Finding the Third Proportional to 298,251 and 631,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,251 : 631,048.50 = 631,048.50 : x
2. Step 2: Convert to fraction form
   298,251/631,048.50 = 631,048.50/x
3. Step 3: Cross multiply
   298,251x = 631,048.50 × 631,048.50
4. Step 4: Simplify right side
   298,251x = 398,222,209,352.25
5. Step 5: Solve for x
   x = 398,222,209,352.25/298,251
6. Step 6: Final answer
   x = 1,335,191.53