Finding the Third Proportional to 298,107 and 451,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,107 : 451,012.50 = 451,012.50 : x
2. Step 2: Convert to fraction form
   298,107/451,012.50 = 451,012.50/x
3. Step 3: Cross multiply
   298,107x = 451,012.50 × 451,012.50
4. Step 4: Simplify right side
   298,107x = 203,412,275,156.25
5. Step 5: Solve for x
   x = 203,412,275,156.25/298,107
6. Step 6: Final answer
   x = 682,346.52