Finding the Third Proportional to 474,128 and 1,027,312

Step by Step Solution

1. Step 1: Write the proportion equation
   474,128 : 1,027,312 = 1,027,312 : x
2. Step 2: Convert to fraction form
   474,128/1,027,312 = 1,027,312/x
3. Step 3: Cross multiply
   474,128x = 1,027,312 × 1,027,312
4. Step 4: Simplify right side
   474,128x = 1,055,369,945,344
5. Step 5: Solve for x
   x = 1,055,369,945,344/474,128
6. Step 6: Final answer
   x = 2,225,917.78