Finding the Third Proportional to 518,969 and 1,140,178

Step by Step Solution

1. Step 1: Write the proportion equation
   518,969 : 1,140,178 = 1,140,178 : x
2. Step 2: Convert to fraction form
   518,969/1,140,178 = 1,140,178/x
3. Step 3: Cross multiply
   518,969x = 1,140,178 × 1,140,178
4. Step 4: Simplify right side
   518,969x = 1,300,005,871,684
5. Step 5: Solve for x
   x = 1,300,005,871,684/518,969
6. Step 6: Final answer
   x = 2,504,977.89