Finding the Third Proportional to 156,945 and 343,034

Step by Step Solution

1. Step 1: Write the proportion equation
   156,945 : 343,034 = 343,034 : x
2. Step 2: Convert to fraction form
   156,945/343,034 = 343,034/x
3. Step 3: Cross multiply
   156,945x = 343,034 × 343,034
4. Step 4: Simplify right side
   156,945x = 117,672,325,156
5. Step 5: Solve for x
   x = 117,672,325,156/156,945
6. Step 6: Final answer
   x = 749,767.91