Finding the Third Proportional to 40,439.50 and 87,750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,439.50 : 87,750.50 = 87,750.50 : x
2. Step 2: Convert to fraction form
   40,439.50/87,750.50 = 87,750.50/x
3. Step 3: Cross multiply
   40,439.50x = 87,750.50 × 87,750.50
4. Step 4: Simplify right side
   40,439.50x = 7,700,150,250.25
5. Step 5: Solve for x
   x = 7,700,150,250.25/40,439.50
6. Step 6: Final answer
   x = 190,411.61