Finding the Third Proportional to 57,510 and 87,075

Step by Step Solution

1. Step 1: Write the proportion equation
   57,510 : 87,075 = 87,075 : x
2. Step 2: Convert to fraction form
   57,510/87,075 = 87,075/x
3. Step 3: Cross multiply
   57,510x = 87,075 × 87,075
4. Step 4: Simplify right side
   57,510x = 7,582,055,625
5. Step 5: Solve for x
   x = 7,582,055,625/57,510
6. Step 6: Final answer
   x = 131,838.91