Finding the Third Proportional to 42,609.80 and 89,625.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42,609.80 : 89,625.23 = 89,625.23 : x
2. Step 2: Convert to fraction form
   42,609.80/89,625.23 = 89,625.23/x
3. Step 3: Cross multiply
   42,609.80x = 89,625.23 × 89,625.23
4. Step 4: Simplify right side
   42,609.80x = 8,032,682,636.77
5. Step 5: Solve for x
   x = 8,032,682,636.77/42,609.80
6. Step 6: Final answer
   x = 188,517.27