Finding the Third Proportional to 42,249 and 89,250

Step by Step Solution

1. Step 1: Write the proportion equation
   42,249 : 89,250 = 89,250 : x
2. Step 2: Convert to fraction form
   42,249/89,250 = 89,250/x
3. Step 3: Cross multiply
   42,249x = 89,250 × 89,250
4. Step 4: Simplify right side
   42,249x = 7,965,562,500
5. Step 5: Solve for x
   x = 7,965,562,500/42,249
6. Step 6: Final answer
   x = 188,538.49