Finding the Third Proportional to 240,903 and 515,142

Step by Step Solution

1. Step 1: Write the proportion equation
   240,903 : 515,142 = 515,142 : x
2. Step 2: Convert to fraction form
   240,903/515,142 = 515,142/x
3. Step 3: Cross multiply
   240,903x = 515,142 × 515,142
4. Step 4: Simplify right side
   240,903x = 265,371,280,164
5. Step 5: Solve for x
   x = 265,371,280,164/240,903
6. Step 6: Final answer
   x = 1,101,569.01