Finding the Third Proportional to 587,907 and 859,173.75

Step by Step Solution

1. Step 1: Write the proportion equation
   587,907 : 859,173.75 = 859,173.75 : x
2. Step 2: Convert to fraction form
   587,907/859,173.75 = 859,173.75/x
3. Step 3: Cross multiply
   587,907x = 859,173.75 × 859,173.75
4. Step 4: Simplify right side
   587,907x = 738,179,532,689.06
5. Step 5: Solve for x
   x = 738,179,532,689.06/587,907
6. Step 6: Final answer
   x = 1,255,605.96