Finding the Third Proportional to 42,792 and 87,960

Step by Step Solution

1. Step 1: Write the proportion equation
   42,792 : 87,960 = 87,960 : x
2. Step 2: Convert to fraction form
   42,792/87,960 = 87,960/x
3. Step 3: Cross multiply
   42,792x = 87,960 × 87,960
4. Step 4: Simplify right side
   42,792x = 7,736,961,600
5. Step 5: Solve for x
   x = 7,736,961,600/42,792
6. Step 6: Final answer
   x = 180,803.93