Finding the Third Proportional to 40,857.75 and 87,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,857.75 : 87,970.50 = 87,970.50 : x
2. Step 2: Convert to fraction form
   40,857.75/87,970.50 = 87,970.50/x
3. Step 3: Cross multiply
   40,857.75x = 87,970.50 × 87,970.50
4. Step 4: Simplify right side
   40,857.75x = 7,738,808,870.25
5. Step 5: Solve for x
   x = 7,738,808,870.25/40,857.75
6. Step 6: Final answer
   x = 189,408.59