Finding the Third Proportional to 243,492 and 493,680

Step by Step Solution

1. Step 1: Write the proportion equation
   243,492 : 493,680 = 493,680 : x
2. Step 2: Convert to fraction form
   243,492/493,680 = 493,680/x
3. Step 3: Cross multiply
   243,492x = 493,680 × 493,680
4. Step 4: Simplify right side
   243,492x = 243,719,942,400
5. Step 5: Solve for x
   x = 243,719,942,400/243,492
6. Step 6: Final answer
   x = 1,000,936.14