Finding the Third Proportional to 917,145 and 1,321,040.25

Step by Step Solution

1. Step 1: Write the proportion equation
   917,145 : 1,321,040.25 = 1,321,040.25 : x
2. Step 2: Convert to fraction form
   917,145/1,321,040.25 = 1,321,040.25/x
3. Step 3: Cross multiply
   917,145x = 1,321,040.25 × 1,321,040.25
4. Step 4: Simplify right side
   917,145x = 1,745,147,342,120.06
5. Step 5: Solve for x
   x = 1,745,147,342,120.06/917,145
6. Step 6: Final answer
   x = 1,902,804.18