Finding the Third Proportional to 917,040.38 and 2,157,757.31

Step by Step Solution

1. Step 1: Write the proportion equation
   917,040.38 : 2,157,757.31 = 2,157,757.31 : x
2. Step 2: Convert to fraction form
   917,040.38/2,157,757.31 = 2,157,757.31/x
3. Step 3: Cross multiply
   917,040.38x = 2,157,757.31 × 2,157,757.31
4. Step 4: Simplify right side
   917,040.38x = 4,655,916,619,647.22
5. Step 5: Solve for x
   x = 4,655,916,619,647.22/917,040.38
6. Step 6: Final answer
   x = 5,077,111.92