Finding the Third Proportional to 280,216.50 and 446,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   280,216.50 : 446,098.50 = 446,098.50 : x
2. Step 2: Convert to fraction form
   280,216.50/446,098.50 = 446,098.50/x
3. Step 3: Cross multiply
   280,216.50x = 446,098.50 × 446,098.50
4. Step 4: Simplify right side
   280,216.50x = 199,003,871,702.25
5. Step 5: Solve for x
   x = 199,003,871,702.25/280,216.50
6. Step 6: Final answer
   x = 710,178.99