Finding the Third Proportional to 428,942 and 928,492

Step by Step Solution

1. Step 1: Write the proportion equation
   428,942 : 928,492 = 928,492 : x
2. Step 2: Convert to fraction form
   428,942/928,492 = 928,492/x
3. Step 3: Cross multiply
   428,942x = 928,492 × 928,492
4. Step 4: Simplify right side
   428,942x = 862,097,394,064
5. Step 5: Solve for x
   x = 862,097,394,064/428,942
6. Step 6: Final answer
   x = 2,009,822.76