Finding the Third Proportional to 156,942 and 343,024

Step by Step Solution

1. Step 1: Write the proportion equation
   156,942 : 343,024 = 343,024 : x
2. Step 2: Convert to fraction form
   156,942/343,024 = 343,024/x
3. Step 3: Cross multiply
   156,942x = 343,024 × 343,024
4. Step 4: Simplify right side
   156,942x = 117,665,464,576
5. Step 5: Solve for x
   x = 117,665,464,576/156,942
6. Step 6: Final answer
   x = 749,738.53