Finding the Third Proportional to 216,551 and 456,799

Step by Step Solution

1. Step 1: Write the proportion equation
   216,551 : 456,799 = 456,799 : x
2. Step 2: Convert to fraction form
   216,551/456,799 = 456,799/x
3. Step 3: Cross multiply
   216,551x = 456,799 × 456,799
4. Step 4: Simplify right side
   216,551x = 208,665,326,401
5. Step 5: Solve for x
   x = 208,665,326,401/216,551
6. Step 6: Final answer
   x = 963,585.14