Finding the Third Proportional to 92,940 and 197,870

Step by Step Solution

1. Step 1: Write the proportion equation
   92,940 : 197,870 = 197,870 : x
2. Step 2: Convert to fraction form
   92,940/197,870 = 197,870/x
3. Step 3: Cross multiply
   92,940x = 197,870 × 197,870
4. Step 4: Simplify right side
   92,940x = 39,152,536,900
5. Step 5: Solve for x
   x = 39,152,536,900/92,940
6. Step 6: Final answer
   x = 421,266.81