Finding the Third Proportional to 590,958 and 865,475.25

Step by Step Solution

1. Step 1: Write the proportion equation
   590,958 : 865,475.25 = 865,475.25 : x
2. Step 2: Convert to fraction form
   590,958/865,475.25 = 865,475.25/x
3. Step 3: Cross multiply
   590,958x = 865,475.25 × 865,475.25
4. Step 4: Simplify right side
   590,958x = 749,047,408,362.56
5. Step 5: Solve for x
   x = 749,047,408,362.56/590,958
6. Step 6: Final answer
   x = 1,267,513.78