Finding the Third Proportional to 56,728.50 and 123,846

Step by Step Solution

1. Step 1: Write the proportion equation
   56,728.50 : 123,846 = 123,846 : x
2. Step 2: Convert to fraction form
   56,728.50/123,846 = 123,846/x
3. Step 3: Cross multiply
   56,728.50x = 123,846 × 123,846
4. Step 4: Simplify right side
   56,728.50x = 15,337,831,716
5. Step 5: Solve for x
   x = 15,337,831,716/56,728.50
6. Step 6: Final answer
   x = 270,372.59