Finding the Third Proportional to 58,851 and 87,132

Step by Step Solution

1. Step 1: Write the proportion equation
   58,851 : 87,132 = 87,132 : x
2. Step 2: Convert to fraction form
   58,851/87,132 = 87,132/x
3. Step 3: Cross multiply
   58,851x = 87,132 × 87,132
4. Step 4: Simplify right side
   58,851x = 7,591,985,424
5. Step 5: Solve for x
   x = 7,591,985,424/58,851
6. Step 6: Final answer
   x = 129,003.51