Finding the Third Proportional to 13,657.50 and 27,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,657.50 : 27,859.50 = 27,859.50 : x
2. Step 2: Convert to fraction form
   13,657.50/27,859.50 = 27,859.50/x
3. Step 3: Cross multiply
   13,657.50x = 27,859.50 × 27,859.50
4. Step 4: Simplify right side
   13,657.50x = 776,151,740.25
5. Step 5: Solve for x
   x = 776,151,740.25/13,657.50
6. Step 6: Final answer
   x = 56,829.71