Finding the Third Proportional to 57,456 and 88,607

Step by Step Solution

1. Step 1: Write the proportion equation
   57,456 : 88,607 = 88,607 : x
2. Step 2: Convert to fraction form
   57,456/88,607 = 88,607/x
3. Step 3: Cross multiply
   57,456x = 88,607 × 88,607
4. Step 4: Simplify right side
   57,456x = 7,851,200,449
5. Step 5: Solve for x
   x = 7,851,200,449/57,456
6. Step 6: Final answer
   x = 136,647.18