Finding the Third Proportional to 15,108 and 31,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,108 : 31,930.50 = 31,930.50 : x
2. Step 2: Convert to fraction form
   15,108/31,930.50 = 31,930.50/x
3. Step 3: Cross multiply
   15,108x = 31,930.50 × 31,930.50
4. Step 4: Simplify right side
   15,108x = 1,019,556,830.25
5. Step 5: Solve for x
   x = 1,019,556,830.25/15,108
6. Step 6: Final answer
   x = 67,484.57