Finding the Third Proportional to 99,081 and 213,954

Step by Step Solution

1. Step 1: Write the proportion equation
   99,081 : 213,954 = 213,954 : x
2. Step 2: Convert to fraction form
   99,081/213,954 = 213,954/x
3. Step 3: Cross multiply
   99,081x = 213,954 × 213,954
4. Step 4: Simplify right side
   99,081x = 45,776,314,116
5. Step 5: Solve for x
   x = 45,776,314,116/99,081
6. Step 6: Final answer
   x = 462,009.00