Finding the Third Proportional to 91,042 and 140,659

Step by Step Solution

1. Step 1: Write the proportion equation
   91,042 : 140,659 = 140,659 : x
2. Step 2: Convert to fraction form
   91,042/140,659 = 140,659/x
3. Step 3: Cross multiply
   91,042x = 140,659 × 140,659
4. Step 4: Simplify right side
   91,042x = 19,784,954,281
5. Step 5: Solve for x
   x = 19,784,954,281/91,042
6. Step 6: Final answer
   x = 217,316.78