Finding the Third Proportional to 12,938.06 and 27,720.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938.06 : 27,720.56 = 27,720.56 : x
2. Step 2: Convert to fraction form
   12,938.06/27,720.56 = 27,720.56/x
3. Step 3: Cross multiply
   12,938.06x = 27,720.56 × 27,720.56
4. Step 4: Simplify right side
   12,938.06x = 768,429,585.32
5. Step 5: Solve for x
   x = 768,429,585.32/12,938.06
6. Step 6: Final answer
   x = 59,392.94