Finding the Third Proportional to 40,284.42 and 87,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,284.42 : 87,790.50 = 87,790.50 : x
2. Step 2: Convert to fraction form
   40,284.42/87,790.50 = 87,790.50/x
3. Step 3: Cross multiply
   40,284.42x = 87,790.50 × 87,790.50
4. Step 4: Simplify right side
   40,284.42x = 7,707,171,890.25
5. Step 5: Solve for x
   x = 7,707,171,890.25/40,284.42
6. Step 6: Final answer
   x = 191,318.92