Finding the Third Proportional to 112,258.50 and 168,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,258.50 : 168,388.50 = 168,388.50 : x
2. Step 2: Convert to fraction form
   112,258.50/168,388.50 = 168,388.50/x
3. Step 3: Cross multiply
   112,258.50x = 168,388.50 × 168,388.50
4. Step 4: Simplify right side
   112,258.50x = 28,354,686,932.25
5. Step 5: Solve for x
   x = 28,354,686,932.25/112,258.50
6. Step 6: Final answer
   x = 252,583.88