Finding the Third Proportional to 13,780.50 and 30,108

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.50 : 30,108 = 30,108 : x
2. Step 2: Convert to fraction form
   13,780.50/30,108 = 30,108/x
3. Step 3: Cross multiply
   13,780.50x = 30,108 × 30,108
4. Step 4: Simplify right side
   13,780.50x = 906,491,664
5. Step 5: Solve for x
   x = 906,491,664/13,780.50
6. Step 6: Final answer
   x = 65,780.75