Finding the Third Proportional to 113,386.50 and 168,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,386.50 : 168,979.50 = 168,979.50 : x
2. Step 2: Convert to fraction form
   113,386.50/168,979.50 = 168,979.50/x
3. Step 3: Cross multiply
   113,386.50x = 168,979.50 × 168,979.50
4. Step 4: Simplify right side
   113,386.50x = 28,554,071,420.25
5. Step 5: Solve for x
   x = 28,554,071,420.25/113,386.50
6. Step 6: Final answer
   x = 251,829.55