Finding the Third Proportional to 12,427.17 and 27,280.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,427.17 : 27,280.55 = 27,280.55 : x
2. Step 2: Convert to fraction form
   12,427.17/27,280.55 = 27,280.55/x
3. Step 3: Cross multiply
   12,427.17x = 27,280.55 × 27,280.55
4. Step 4: Simplify right side
   12,427.17x = 744,228,237.80
5. Step 5: Solve for x
   x = 744,228,237.80/12,427.17
6. Step 6: Final answer
   x = 59,887.18