Finding the Third Proportional to 79,300 and 108,740

Step by Step Solution

1. Step 1: Write the proportion equation
   79,300 : 108,740 = 108,740 : x
2. Step 2: Convert to fraction form
   79,300/108,740 = 108,740/x
3. Step 3: Cross multiply
   79,300x = 108,740 × 108,740
4. Step 4: Simplify right side
   79,300x = 11,824,387,600
5. Step 5: Solve for x
   x = 11,824,387,600/79,300
6. Step 6: Final answer
   x = 149,109.55