Finding the Third Proportional to 89,930.50 and 131,979.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,930.50 : 131,979.25 = 131,979.25 : x
2. Step 2: Convert to fraction form
   89,930.50/131,979.25 = 131,979.25/x
3. Step 3: Cross multiply
   89,930.50x = 131,979.25 × 131,979.25
4. Step 4: Simplify right side
   89,930.50x = 17,418,522,430.56
5. Step 5: Solve for x
   x = 17,418,522,430.56/89,930.50
6. Step 6: Final answer
   x = 193,688.71