Finding the Third Proportional to 40,585.50 and 89,930.81

Step by Step Solution

1. Step 1: Write the proportion equation
   40,585.50 : 89,930.81 = 89,930.81 : x
2. Step 2: Convert to fraction form
   40,585.50/89,930.81 = 89,930.81/x
3. Step 3: Cross multiply
   40,585.50x = 89,930.81 × 89,930.81
4. Step 4: Simplify right side
   40,585.50x = 8,087,551,036.91
5. Step 5: Solve for x
   x = 8,087,551,036.91/40,585.50
6. Step 6: Final answer
   x = 199,271.93