Finding the Third Proportional to 156,680.50 and 343,397

Step by Step Solution

1. Step 1: Write the proportion equation
   156,680.50 : 343,397 = 343,397 : x
2. Step 2: Convert to fraction form
   156,680.50/343,397 = 343,397/x
3. Step 3: Cross multiply
   156,680.50x = 343,397 × 343,397
4. Step 4: Simplify right side
   156,680.50x = 117,921,499,609
5. Step 5: Solve for x
   x = 117,921,499,609/156,680.50
6. Step 6: Final answer
   x = 752,623.97