Finding the Third Proportional to 280,435.50 and 612,264.38

Step by Step Solution

1. Step 1: Write the proportion equation
   280,435.50 : 612,264.38 = 612,264.38 : x
2. Step 2: Convert to fraction form
   280,435.50/612,264.38 = 612,264.38/x
3. Step 3: Cross multiply
   280,435.50x = 612,264.38 × 612,264.38
4. Step 4: Simplify right side
   280,435.50x = 374,867,664,894.14
5. Step 5: Solve for x
   x = 374,867,664,894.14/280,435.50
6. Step 6: Final answer
   x = 1,336,733.99