Finding the Third Proportional to 156,631 and 341,495

Step by Step Solution

1. Step 1: Write the proportion equation
   156,631 : 341,495 = 341,495 : x
2. Step 2: Convert to fraction form
   156,631/341,495 = 341,495/x
3. Step 3: Cross multiply
   156,631x = 341,495 × 341,495
4. Step 4: Simplify right side
   156,631x = 116,618,835,025
5. Step 5: Solve for x
   x = 116,618,835,025/156,631
6. Step 6: Final answer
   x = 744,545.05