Finding the Third Proportional to 267,406.31 and 587,300.63

Step by Step Solution

1. Step 1: Write the proportion equation
   267,406.31 : 587,300.63 = 587,300.63 : x
2. Step 2: Convert to fraction form
   267,406.31/587,300.63 = 587,300.63/x
3. Step 3: Cross multiply
   267,406.31x = 587,300.63 × 587,300.63
4. Step 4: Simplify right side
   267,406.31x = 344,922,024,125.39
5. Step 5: Solve for x
   x = 344,922,024,125.39/267,406.31
6. Step 6: Final answer
   x = 1,289,879.89