Finding the Third Proportional to 28,587.75 and 59,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,587.75 : 59,128.50 = 59,128.50 : x
2. Step 2: Convert to fraction form
   28,587.75/59,128.50 = 59,128.50/x
3. Step 3: Cross multiply
   28,587.75x = 59,128.50 × 59,128.50
4. Step 4: Simplify right side
   28,587.75x = 3,496,179,512.25
5. Step 5: Solve for x
   x = 3,496,179,512.25/28,587.75
6. Step 6: Final answer
   x = 122,296.42