Finding the Third Proportional to 539,640 and 1,184,256

Step by Step Solution

1. Step 1: Write the proportion equation
   539,640 : 1,184,256 = 1,184,256 : x
2. Step 2: Convert to fraction form
   539,640/1,184,256 = 1,184,256/x
3. Step 3: Cross multiply
   539,640x = 1,184,256 × 1,184,256
4. Step 4: Simplify right side
   539,640x = 1,402,462,273,536
5. Step 5: Solve for x
   x = 1,402,462,273,536/539,640
6. Step 6: Final answer
   x = 2,598,884.95