Finding the Third Proportional to 155,859 and 340,876

Step by Step Solution

1. Step 1: Write the proportion equation
   155,859 : 340,876 = 340,876 : x
2. Step 2: Convert to fraction form
   155,859/340,876 = 340,876/x
3. Step 3: Cross multiply
   155,859x = 340,876 × 340,876
4. Step 4: Simplify right side
   155,859x = 116,196,447,376
5. Step 5: Solve for x
   x = 116,196,447,376/155,859
6. Step 6: Final answer
   x = 745,522.86