Finding the Third Proportional to 90,126 and 140,283

Step by Step Solution

1. Step 1: Write the proportion equation
   90,126 : 140,283 = 140,283 : x
2. Step 2: Convert to fraction form
   90,126/140,283 = 140,283/x
3. Step 3: Cross multiply
   90,126x = 140,283 × 140,283
4. Step 4: Simplify right side
   90,126x = 19,679,320,089
5. Step 5: Solve for x
   x = 19,679,320,089/90,126
6. Step 6: Final answer
   x = 218,353.42