Finding the Third Proportional to 31,384.50 and 48,720

Step by Step Solution

1. Step 1: Write the proportion equation
   31,384.50 : 48,720 = 48,720 : x
2. Step 2: Convert to fraction form
   31,384.50/48,720 = 48,720/x
3. Step 3: Cross multiply
   31,384.50x = 48,720 × 48,720
4. Step 4: Simplify right side
   31,384.50x = 2,373,638,400
5. Step 5: Solve for x
   x = 2,373,638,400/31,384.50
6. Step 6: Final answer
   x = 75,630.91