Finding the Third Proportional to 25,215 and 61,122

Step by Step Solution

1. Step 1: Write the proportion equation
   25,215 : 61,122 = 61,122 : x
2. Step 2: Convert to fraction form
   25,215/61,122 = 61,122/x
3. Step 3: Cross multiply
   25,215x = 61,122 × 61,122
4. Step 4: Simplify right side
   25,215x = 3,735,898,884
5. Step 5: Solve for x
   x = 3,735,898,884/25,215
6. Step 6: Final answer
   x = 148,161.76