Finding the Third Proportional to 155,042 and 334,870

Step by Step Solution

1. Step 1: Write the proportion equation
   155,042 : 334,870 = 334,870 : x
2. Step 2: Convert to fraction form
   155,042/334,870 = 334,870/x
3. Step 3: Cross multiply
   155,042x = 334,870 × 334,870
4. Step 4: Simplify right side
   155,042x = 112,137,916,900
5. Step 5: Solve for x
   x = 112,137,916,900/155,042
6. Step 6: Final answer
   x = 723,274.45