Finding the Third Proportional to 407,478 and 885,078

Step by Step Solution

1. Step 1: Write the proportion equation
   407,478 : 885,078 = 885,078 : x
2. Step 2: Convert to fraction form
   407,478/885,078 = 885,078/x
3. Step 3: Cross multiply
   407,478x = 885,078 × 885,078
4. Step 4: Simplify right side
   407,478x = 783,363,066,084
5. Step 5: Solve for x
   x = 783,363,066,084/407,478
6. Step 6: Final answer
   x = 1,922,467.14