Finding the Third Proportional to 25,642 and 55,658

Step by Step Solution

1. Step 1: Write the proportion equation
   25,642 : 55,658 = 55,658 : x
2. Step 2: Convert to fraction form
   25,642/55,658 = 55,658/x
3. Step 3: Cross multiply
   25,642x = 55,658 × 55,658
4. Step 4: Simplify right side
   25,642x = 3,097,812,964
5. Step 5: Solve for x
   x = 3,097,812,964/25,642
6. Step 6: Final answer
   x = 120,810.11