Finding the Third Proportional to 25,490 and 56,020

Step by Step Solution

1. Step 1: Write the proportion equation
   25,490 : 56,020 = 56,020 : x
2. Step 2: Convert to fraction form
   25,490/56,020 = 56,020/x
3. Step 3: Cross multiply
   25,490x = 56,020 × 56,020
4. Step 4: Simplify right side
   25,490x = 3,138,240,400
5. Step 5: Solve for x
   x = 3,138,240,400/25,490
6. Step 6: Final answer
   x = 123,116.53