Finding the Third Proportional to 280,375.59 and 615,032.72

Step by Step Solution

1. Step 1: Write the proportion equation
   280,375.59 : 615,032.72 = 615,032.72 : x
2. Step 2: Convert to fraction form
   280,375.59/615,032.72 = 615,032.72/x
3. Step 3: Cross multiply
   280,375.59x = 615,032.72 × 615,032.72
4. Step 4: Simplify right side
   280,375.59x = 378,265,245,133.02
5. Step 5: Solve for x
   x = 378,265,245,133.02/280,375.59
6. Step 6: Final answer
   x = 1,349,137.56