Finding the Third Proportional to 57,412 and 88,662

Step by Step Solution

1. Step 1: Write the proportion equation
   57,412 : 88,662 = 88,662 : x
2. Step 2: Convert to fraction form
   57,412/88,662 = 88,662/x
3. Step 3: Cross multiply
   57,412x = 88,662 × 88,662
4. Step 4: Simplify right side
   57,412x = 7,860,950,244
5. Step 5: Solve for x
   x = 7,860,950,244/57,412
6. Step 6: Final answer
   x = 136,921.73