Finding the Third Proportional to 113,564 and 238,899

Step by Step Solution

1. Step 1: Write the proportion equation
   113,564 : 238,899 = 238,899 : x
2. Step 2: Convert to fraction form
   113,564/238,899 = 238,899/x
3. Step 3: Cross multiply
   113,564x = 238,899 × 238,899
4. Step 4: Simplify right side
   113,564x = 57,072,732,201
5. Step 5: Solve for x
   x = 57,072,732,201/113,564
6. Step 6: Final answer
   x = 502,560.07