Finding the Third Proportional to 59,638.50 and 131,031

Step by Step Solution

1. Step 1: Write the proportion equation
   59,638.50 : 131,031 = 131,031 : x
2. Step 2: Convert to fraction form
   59,638.50/131,031 = 131,031/x
3. Step 3: Cross multiply
   59,638.50x = 131,031 × 131,031
4. Step 4: Simplify right side
   59,638.50x = 17,169,122,961
5. Step 5: Solve for x
   x = 17,169,122,961/59,638.50
6. Step 6: Final answer
   x = 287,886.57