Finding the Third Proportional to 31,513.50 and 48,789

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513.50 : 48,789 = 48,789 : x
2. Step 2: Convert to fraction form
   31,513.50/48,789 = 48,789/x
3. Step 3: Cross multiply
   31,513.50x = 48,789 × 48,789
4. Step 4: Simplify right side
   31,513.50x = 2,380,366,521
5. Step 5: Solve for x
   x = 2,380,366,521/31,513.50
6. Step 6: Final answer
   x = 75,534.82