Finding the Third Proportional to 113,513 and 238,788.25

Step by Step Solution

1. Step 1: Write the proportion equation
   113,513 : 238,788.25 = 238,788.25 : x
2. Step 2: Convert to fraction form
   113,513/238,788.25 = 238,788.25/x
3. Step 3: Cross multiply
   113,513x = 238,788.25 × 238,788.25
4. Step 4: Simplify right side
   113,513x = 57,019,828,338.06
5. Step 5: Solve for x
   x = 57,019,828,338.06/113,513
6. Step 6: Final answer
   x = 502,319.81