Finding the Third Proportional to 886,128 and 1,898,256

Step by Step Solution

1. Step 1: Write the proportion equation
   886,128 : 1,898,256 = 1,898,256 : x
2. Step 2: Convert to fraction form
   886,128/1,898,256 = 1,898,256/x
3. Step 3: Cross multiply
   886,128x = 1,898,256 × 1,898,256
4. Step 4: Simplify right side
   886,128x = 3,603,375,841,536
5. Step 5: Solve for x
   x = 3,603,375,841,536/886,128
6. Step 6: Final answer
   x = 4,066,428.15