Finding the Third Proportional to 12,698.50 and 27,515.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,698.50 : 27,515.75 = 27,515.75 : x
2. Step 2: Convert to fraction form
   12,698.50/27,515.75 = 27,515.75/x
3. Step 3: Cross multiply
   12,698.50x = 27,515.75 × 27,515.75
4. Step 4: Simplify right side
   12,698.50x = 757,116,498.06
5. Step 5: Solve for x
   x = 757,116,498.06/12,698.50
6. Step 6: Final answer
   x = 59,622.51