Finding the Third Proportional to 25,851 and 56,781

Step by Step Solution

1. Step 1: Write the proportion equation
   25,851 : 56,781 = 56,781 : x
2. Step 2: Convert to fraction form
   25,851/56,781 = 56,781/x
3. Step 3: Cross multiply
   25,851x = 56,781 × 56,781
4. Step 4: Simplify right side
   25,851x = 3,224,081,961
5. Step 5: Solve for x
   x = 3,224,081,961/25,851
6. Step 6: Final answer
   x = 124,717.88