Finding the Third Proportional to 90,192 and 140,201

Step by Step Solution

1. Step 1: Write the proportion equation
   90,192 : 140,201 = 140,201 : x
2. Step 2: Convert to fraction form
   90,192/140,201 = 140,201/x
3. Step 3: Cross multiply
   90,192x = 140,201 × 140,201
4. Step 4: Simplify right side
   90,192x = 19,656,320,401
5. Step 5: Solve for x
   x = 19,656,320,401/90,192
6. Step 6: Final answer
   x = 217,938.62