Finding the Third Proportional to 65,288 and 87,510

Step by Step Solution

1. Step 1: Write the proportion equation
   65,288 : 87,510 = 87,510 : x
2. Step 2: Convert to fraction form
   65,288/87,510 = 87,510/x
3. Step 3: Cross multiply
   65,288x = 87,510 × 87,510
4. Step 4: Simplify right side
   65,288x = 7,658,000,100
5. Step 5: Solve for x
   x = 7,658,000,100/65,288
6. Step 6: Final answer
   x = 117,295.68