Finding the Third Proportional to 25,698 and 56,124

Step by Step Solution

1. Step 1: Write the proportion equation
   25,698 : 56,124 = 56,124 : x
2. Step 2: Convert to fraction form
   25,698/56,124 = 56,124/x
3. Step 3: Cross multiply
   25,698x = 56,124 × 56,124
4. Step 4: Simplify right side
   25,698x = 3,149,903,376
5. Step 5: Solve for x
   x = 3,149,903,376/25,698
6. Step 6: Final answer
   x = 122,573.87