Finding the Third Proportional to 68,480 and 109,488

Step by Step Solution

1. Step 1: Write the proportion equation
   68,480 : 109,488 = 109,488 : x
2. Step 2: Convert to fraction form
   68,480/109,488 = 109,488/x
3. Step 3: Cross multiply
   68,480x = 109,488 × 109,488
4. Step 4: Simplify right side
   68,480x = 11,987,622,144
5. Step 5: Solve for x
   x = 11,987,622,144/68,480
6. Step 6: Final answer
   x = 175,052.89