Finding the Third Proportional to 56,803 and 123,009.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,803 : 123,009.75 = 123,009.75 : x
2. Step 2: Convert to fraction form
   56,803/123,009.75 = 123,009.75/x
3. Step 3: Cross multiply
   56,803x = 123,009.75 × 123,009.75
4. Step 4: Simplify right side
   56,803x = 15,131,398,595.06
5. Step 5: Solve for x
   x = 15,131,398,595.06/56,803
6. Step 6: Final answer
   x = 266,383.79