Finding the Third Proportional to 52,603 and 73,990

Step by Step Solution

1. Step 1: Write the proportion equation
   52,603 : 73,990 = 73,990 : x
2. Step 2: Convert to fraction form
   52,603/73,990 = 73,990/x
3. Step 3: Cross multiply
   52,603x = 73,990 × 73,990
4. Step 4: Simplify right side
   52,603x = 5,474,520,100
5. Step 5: Solve for x
   x = 5,474,520,100/52,603
6. Step 6: Final answer
   x = 104,072.39