Finding the Third Proportional to 37,931.50 and 54,638

Step by Step Solution

1. Step 1: Write the proportion equation
   37,931.50 : 54,638 = 54,638 : x
2. Step 2: Convert to fraction form
   37,931.50/54,638 = 54,638/x
3. Step 3: Cross multiply
   37,931.50x = 54,638 × 54,638
4. Step 4: Simplify right side
   37,931.50x = 2,985,311,044
5. Step 5: Solve for x
   x = 2,985,311,044/37,931.50
6. Step 6: Final answer
   x = 78,702.69