Finding the Third Proportional to 12,989.25 and 27,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,989.25 : 27,706.50 = 27,706.50 : x
2. Step 2: Convert to fraction form
   12,989.25/27,706.50 = 27,706.50/x
3. Step 3: Cross multiply
   12,989.25x = 27,706.50 × 27,706.50
4. Step 4: Simplify right side
   12,989.25x = 767,650,142.25
5. Step 5: Solve for x
   x = 767,650,142.25/12,989.25
6. Step 6: Final answer
   x = 59,098.88