Finding the Third Proportional to 5,980.08 and 12,780.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,980.08 : 12,780.28 = 12,780.28 : x
2. Step 2: Convert to fraction form
   5,980.08/12,780.28 = 12,780.28/x
3. Step 3: Cross multiply
   5,980.08x = 12,780.28 × 12,780.28
4. Step 4: Simplify right side
   5,980.08x = 163,335,588.83
5. Step 5: Solve for x
   x = 163,335,588.83/5,980.08
6. Step 6: Final answer
   x = 27,313.29