Finding the Third Proportional to 30,903 and 67,503

Step by Step Solution

1. Step 1: Write the proportion equation
   30,903 : 67,503 = 67,503 : x
2. Step 2: Convert to fraction form
   30,903/67,503 = 67,503/x
3. Step 3: Cross multiply
   30,903x = 67,503 × 67,503
4. Step 4: Simplify right side
   30,903x = 4,556,655,009
5. Step 5: Solve for x
   x = 4,556,655,009/30,903
6. Step 6: Final answer
   x = 147,450.25