Finding the Third Proportional to 103,683 and 140,690

Step by Step Solution

1. Step 1: Write the proportion equation
   103,683 : 140,690 = 140,690 : x
2. Step 2: Convert to fraction form
   103,683/140,690 = 140,690/x
3. Step 3: Cross multiply
   103,683x = 140,690 × 140,690
4. Step 4: Simplify right side
   103,683x = 19,793,676,100
5. Step 5: Solve for x
   x = 19,793,676,100/103,683
6. Step 6: Final answer
   x = 190,905.70