Finding the Third Proportional to 113,609.25 and 238,970.25

Step by Step Solution

1. Step 1: Write the proportion equation
   113,609.25 : 238,970.25 = 238,970.25 : x
2. Step 2: Convert to fraction form
   113,609.25/238,970.25 = 238,970.25/x
3. Step 3: Cross multiply
   113,609.25x = 238,970.25 × 238,970.25
4. Step 4: Simplify right side
   113,609.25x = 57,106,780,385.06
5. Step 5: Solve for x
   x = 57,106,780,385.06/113,609.25
6. Step 6: Final answer
   x = 502,659.60