Finding the Third Proportional to 42,488 and 67,502

Step by Step Solution

1. Step 1: Write the proportion equation
   42,488 : 67,502 = 67,502 : x
2. Step 2: Convert to fraction form
   42,488/67,502 = 67,502/x
3. Step 3: Cross multiply
   42,488x = 67,502 × 67,502
4. Step 4: Simplify right side
   42,488x = 4,556,520,004
5. Step 5: Solve for x
   x = 4,556,520,004/42,488
6. Step 6: Final answer
   x = 107,242.52