Finding the Third Proportional to 25,698 and 54,789

Step by Step Solution

1. Step 1: Write the proportion equation
   25,698 : 54,789 = 54,789 : x
2. Step 2: Convert to fraction form
   25,698/54,789 = 54,789/x
3. Step 3: Cross multiply
   25,698x = 54,789 × 54,789
4. Step 4: Simplify right side
   25,698x = 3,001,834,521
5. Step 5: Solve for x
   x = 3,001,834,521/25,698
6. Step 6: Final answer
   x = 116,811.99