Finding the Third Proportional to 57,872 and 86,792

Step by Step Solution

1. Step 1: Write the proportion equation
   57,872 : 86,792 = 86,792 : x
2. Step 2: Convert to fraction form
   57,872/86,792 = 86,792/x
3. Step 3: Cross multiply
   57,872x = 86,792 × 86,792
4. Step 4: Simplify right side
   57,872x = 7,532,851,264
5. Step 5: Solve for x
   x = 7,532,851,264/57,872
6. Step 6: Final answer
   x = 130,164.00