Finding the Third Proportional to 112,490.50 and 158,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,490.50 : 158,210.50 = 158,210.50 : x
2. Step 2: Convert to fraction form
   112,490.50/158,210.50 = 158,210.50/x
3. Step 3: Cross multiply
   112,490.50x = 158,210.50 × 158,210.50
4. Step 4: Simplify right side
   112,490.50x = 25,030,562,310.25
5. Step 5: Solve for x
   x = 25,030,562,310.25/112,490.50
6. Step 6: Final answer
   x = 222,512.68