Finding the Third Proportional to 26,487 and 56,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,487 : 56,578.50 = 56,578.50 : x
2. Step 2: Convert to fraction form
   26,487/56,578.50 = 56,578.50/x
3. Step 3: Cross multiply
   26,487x = 56,578.50 × 56,578.50
4. Step 4: Simplify right side
   26,487x = 3,201,126,662.25
5. Step 5: Solve for x
   x = 3,201,126,662.25/26,487
6. Step 6: Final answer
   x = 120,856.52