Finding the Third Proportional to 426,492 and 912,040

Step by Step Solution

1. Step 1: Write the proportion equation
   426,492 : 912,040 = 912,040 : x
2. Step 2: Convert to fraction form
   426,492/912,040 = 912,040/x
3. Step 3: Cross multiply
   426,492x = 912,040 × 912,040
4. Step 4: Simplify right side
   426,492x = 831,816,961,600
5. Step 5: Solve for x
   x = 831,816,961,600/426,492
6. Step 6: Final answer
   x = 1,950,369.44