Finding the Third Proportional to 57,492 and 85,884

Step by Step Solution

1. Step 1: Write the proportion equation
   57,492 : 85,884 = 85,884 : x
2. Step 2: Convert to fraction form
   57,492/85,884 = 85,884/x
3. Step 3: Cross multiply
   57,492x = 85,884 × 85,884
4. Step 4: Simplify right side
   57,492x = 7,376,061,456
5. Step 5: Solve for x
   x = 7,376,061,456/57,492
6. Step 6: Final answer
   x = 128,297.18