Finding the Third Proportional to 428,928 and 942,456

Step by Step Solution

1. Step 1: Write the proportion equation
   428,928 : 942,456 = 942,456 : x
2. Step 2: Convert to fraction form
   428,928/942,456 = 942,456/x
3. Step 3: Cross multiply
   428,928x = 942,456 × 942,456
4. Step 4: Simplify right side
   428,928x = 888,223,311,936
5. Step 5: Solve for x
   x = 888,223,311,936/428,928
6. Step 6: Final answer
   x = 2,070,798.16