Finding the Third Proportional to 57,211 and 89,301

Step by Step Solution

1. Step 1: Write the proportion equation
   57,211 : 89,301 = 89,301 : x
2. Step 2: Convert to fraction form
   57,211/89,301 = 89,301/x
3. Step 3: Cross multiply
   57,211x = 89,301 × 89,301
4. Step 4: Simplify right side
   57,211x = 7,974,668,601
5. Step 5: Solve for x
   x = 7,974,668,601/57,211
6. Step 6: Final answer
   x = 139,390.48