Finding the Third Proportional to 485,216 and 1,053,312

Step by Step Solution

1. Step 1: Write the proportion equation
   485,216 : 1,053,312 = 1,053,312 : x
2. Step 2: Convert to fraction form
   485,216/1,053,312 = 1,053,312/x
3. Step 3: Cross multiply
   485,216x = 1,053,312 × 1,053,312
4. Step 4: Simplify right side
   485,216x = 1,109,466,169,344
5. Step 5: Solve for x
   x = 1,109,466,169,344/485,216
6. Step 6: Final answer
   x = 2,286,540.78