Finding the Third Proportional to 495,640 and 1,055,216

Step by Step Solution

1. Step 1: Write the proportion equation
   495,640 : 1,055,216 = 1,055,216 : x
2. Step 2: Convert to fraction form
   495,640/1,055,216 = 1,055,216/x
3. Step 3: Cross multiply
   495,640x = 1,055,216 × 1,055,216
4. Step 4: Simplify right side
   495,640x = 1,113,480,806,656
5. Step 5: Solve for x
   x = 1,113,480,806,656/495,640
6. Step 6: Final answer
   x = 2,246,551.54