Finding the Third Proportional to 156,636 and 341,217

Step by Step Solution

1. Step 1: Write the proportion equation
   156,636 : 341,217 = 341,217 : x
2. Step 2: Convert to fraction form
   156,636/341,217 = 341,217/x
3. Step 3: Cross multiply
   156,636x = 341,217 × 341,217
4. Step 4: Simplify right side
   156,636x = 116,429,041,089
5. Step 5: Solve for x
   x = 116,429,041,089/156,636
6. Step 6: Final answer
   x = 743,309.59