Finding the Third Proportional to 5,362.50 and 12,711

Step by Step Solution

1. Step 1: Write the proportion equation
   5,362.50 : 12,711 = 12,711 : x
2. Step 2: Convert to fraction form
   5,362.50/12,711 = 12,711/x
3. Step 3: Cross multiply
   5,362.50x = 12,711 × 12,711
4. Step 4: Simplify right side
   5,362.50x = 161,569,521
5. Step 5: Solve for x
   x = 161,569,521/5,362.50
6. Step 6: Final answer
   x = 30,129.51