Finding the Third Proportional to 90,314 and 140,300

Step by Step Solution

1. Step 1: Write the proportion equation
   90,314 : 140,300 = 140,300 : x
2. Step 2: Convert to fraction form
   90,314/140,300 = 140,300/x
3. Step 3: Cross multiply
   90,314x = 140,300 × 140,300
4. Step 4: Simplify right side
   90,314x = 19,684,090,000
5. Step 5: Solve for x
   x = 19,684,090,000/90,314
6. Step 6: Final answer
   x = 217,951.70