Finding the Third Proportional to 218,499 and 476,716

Step by Step Solution

1. Step 1: Write the proportion equation
   218,499 : 476,716 = 476,716 : x
2. Step 2: Convert to fraction form
   218,499/476,716 = 476,716/x
3. Step 3: Cross multiply
   218,499x = 476,716 × 476,716
4. Step 4: Simplify right side
   218,499x = 227,258,144,656
5. Step 5: Solve for x
   x = 227,258,144,656/218,499
6. Step 6: Final answer
   x = 1,040,087.80