Finding the Third Proportional to 13,957.50 and 30,420.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,957.50 : 30,420.38 = 30,420.38 : x
2. Step 2: Convert to fraction form
   13,957.50/30,420.38 = 30,420.38/x
3. Step 3: Cross multiply
   13,957.50x = 30,420.38 × 30,420.38
4. Step 4: Simplify right side
   13,957.50x = 925,399,215.14
5. Step 5: Solve for x
   x = 925,399,215.14/13,957.50
6. Step 6: Final answer
   x = 66,301.22