Finding the Third Proportional to 13,780.13 and 30,020.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.13 : 30,020.63 = 30,020.63 : x
2. Step 2: Convert to fraction form
   13,780.13/30,020.63 = 30,020.63/x
3. Step 3: Cross multiply
   13,780.13x = 30,020.63 × 30,020.63
4. Step 4: Simplify right side
   13,780.13x = 901,237,925.39
5. Step 5: Solve for x
   x = 901,237,925.39/13,780.13
6. Step 6: Final answer
   x = 65,401.29