Finding the Third Proportional to 216,854 and 469,908

Step by Step Solution

1. Step 1: Write the proportion equation
   216,854 : 469,908 = 469,908 : x
2. Step 2: Convert to fraction form
   216,854/469,908 = 469,908/x
3. Step 3: Cross multiply
   216,854x = 469,908 × 469,908
4. Step 4: Simplify right side
   216,854x = 220,813,528,464
5. Step 5: Solve for x
   x = 220,813,528,464/216,854
6. Step 6: Final answer
   x = 1,018,258.96