Finding the Third Proportional to 12,987.42 and 27,961.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,987.42 : 27,961.31 = 27,961.31 : x
2. Step 2: Convert to fraction form
   12,987.42/27,961.31 = 27,961.31/x
3. Step 3: Cross multiply
   12,987.42x = 27,961.31 × 27,961.31
4. Step 4: Simplify right side
   12,987.42x = 781,834,996.72
5. Step 5: Solve for x
   x = 781,834,996.72/12,987.42
6. Step 6: Final answer
   x = 60,199.40