Finding the Third Proportional to 13,930.31 and 30,616.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,930.31 : 30,616.31 = 30,616.31 : x
2. Step 2: Convert to fraction form
   13,930.31/30,616.31 = 30,616.31/x
3. Step 3: Cross multiply
   13,930.31x = 30,616.31 × 30,616.31
4. Step 4: Simplify right side
   13,930.31x = 937,358,591.10
5. Step 5: Solve for x
   x = 937,358,591.10/13,930.31
6. Step 6: Final answer
   x = 67,289.13