Finding the Third Proportional to 45,510 and 67,603

Step by Step Solution

1. Step 1: Write the proportion equation
   45,510 : 67,603 = 67,603 : x
2. Step 2: Convert to fraction form
   45,510/67,603 = 67,603/x
3. Step 3: Cross multiply
   45,510x = 67,603 × 67,603
4. Step 4: Simplify right side
   45,510x = 4,570,165,609
5. Step 5: Solve for x
   x = 4,570,165,609/45,510
6. Step 6: Final answer
   x = 100,421.13