Finding the Third Proportional to 89,735.50 and 140,788.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,735.50 : 140,788.31 = 140,788.31 : x
2. Step 2: Convert to fraction form
   89,735.50/140,788.31 = 140,788.31/x
3. Step 3: Cross multiply
   89,735.50x = 140,788.31 × 140,788.31
4. Step 4: Simplify right side
   89,735.50x = 19,821,348,936.60
5. Step 5: Solve for x
   x = 19,821,348,936.60/89,735.50
6. Step 6: Final answer
   x = 220,886.37