Finding the Third Proportional to 140,102 and 300,940

Step by Step Solution

1. Step 1: Write the proportion equation
   140,102 : 300,940 = 300,940 : x
2. Step 2: Convert to fraction form
   140,102/300,940 = 300,940/x
3. Step 3: Cross multiply
   140,102x = 300,940 × 300,940
4. Step 4: Simplify right side
   140,102x = 90,564,883,600
5. Step 5: Solve for x
   x = 90,564,883,600/140,102
6. Step 6: Final answer
   x = 646,421.06