Finding the Third Proportional to 98,579.75 and 213,768

Step by Step Solution

1. Step 1: Write the proportion equation
   98,579.75 : 213,768 = 213,768 : x
2. Step 2: Convert to fraction form
   98,579.75/213,768 = 213,768/x
3. Step 3: Cross multiply
   98,579.75x = 213,768 × 213,768
4. Step 4: Simplify right side
   98,579.75x = 45,696,757,824
5. Step 5: Solve for x
   x = 45,696,757,824/98,579.75
6. Step 6: Final answer
   x = 463,551.16