Finding the Third Proportional to 13,558.50 and 30,021

Step by Step Solution

1. Step 1: Write the proportion equation
   13,558.50 : 30,021 = 30,021 : x
2. Step 2: Convert to fraction form
   13,558.50/30,021 = 30,021/x
3. Step 3: Cross multiply
   13,558.50x = 30,021 × 30,021
4. Step 4: Simplify right side
   13,558.50x = 901,260,441
5. Step 5: Solve for x
   x = 901,260,441/13,558.50
6. Step 6: Final answer
   x = 66,471.99