Finding the Third Proportional to 103,662 and 140,659

Step by Step Solution

1. Step 1: Write the proportion equation
   103,662 : 140,659 = 140,659 : x
2. Step 2: Convert to fraction form
   103,662/140,659 = 140,659/x
3. Step 3: Cross multiply
   103,662x = 140,659 × 140,659
4. Step 4: Simplify right side
   103,662x = 19,784,954,281
5. Step 5: Solve for x
   x = 19,784,954,281/103,662
6. Step 6: Final answer
   x = 190,860.24