Finding the Third Proportional to 113,458 and 188,440

Step by Step Solution

1. Step 1: Write the proportion equation
   113,458 : 188,440 = 188,440 : x
2. Step 2: Convert to fraction form
   113,458/188,440 = 188,440/x
3. Step 3: Cross multiply
   113,458x = 188,440 × 188,440
4. Step 4: Simplify right side
   113,458x = 35,509,633,600
5. Step 5: Solve for x
   x = 35,509,633,600/113,458
6. Step 6: Final answer
   x = 312,976.02