Finding the Third Proportional to 141,285 and 306,870

Step by Step Solution

1. Step 1: Write the proportion equation
   141,285 : 306,870 = 306,870 : x
2. Step 2: Convert to fraction form
   141,285/306,870 = 306,870/x
3. Step 3: Cross multiply
   141,285x = 306,870 × 306,870
4. Step 4: Simplify right side
   141,285x = 94,169,196,900
5. Step 5: Solve for x
   x = 94,169,196,900/141,285
6. Step 6: Final answer
   x = 666,519.42