Finding the Third Proportional to 219,510 and 472,878

Step by Step Solution

1. Step 1: Write the proportion equation
   219,510 : 472,878 = 472,878 : x
2. Step 2: Convert to fraction form
   219,510/472,878 = 472,878/x
3. Step 3: Cross multiply
   219,510x = 472,878 × 472,878
4. Step 4: Simplify right side
   219,510x = 223,613,602,884
5. Step 5: Solve for x
   x = 223,613,602,884/219,510
6. Step 6: Final answer
   x = 1,018,694.38