Finding the Third Proportional to 42,439.50 and 89,525.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,439.50 : 89,525.25 = 89,525.25 : x
2. Step 2: Convert to fraction form
   42,439.50/89,525.25 = 89,525.25/x
3. Step 3: Cross multiply
   42,439.50x = 89,525.25 × 89,525.25
4. Step 4: Simplify right side
   42,439.50x = 8,014,770,387.56
5. Step 5: Solve for x
   x = 8,014,770,387.56/42,439.50
6. Step 6: Final answer
   x = 188,851.67