Finding the Third Proportional to 13,615 and 30,147

Step by Step Solution

1. Step 1: Write the proportion equation
   13,615 : 30,147 = 30,147 : x
2. Step 2: Convert to fraction form
   13,615/30,147 = 30,147/x
3. Step 3: Cross multiply
   13,615x = 30,147 × 30,147
4. Step 4: Simplify right side
   13,615x = 908,841,609
5. Step 5: Solve for x
   x = 908,841,609/13,615
6. Step 6: Final answer
   x = 66,752.96