Finding the Third Proportional to 89,809.50 and 140,883.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,809.50 : 140,883.50 = 140,883.50 : x
2. Step 2: Convert to fraction form
   89,809.50/140,883.50 = 140,883.50/x
3. Step 3: Cross multiply
   89,809.50x = 140,883.50 × 140,883.50
4. Step 4: Simplify right side
   89,809.50x = 19,848,160,572.25
5. Step 5: Solve for x
   x = 19,848,160,572.25/89,809.50
6. Step 6: Final answer
   x = 221,002.91