Finding the Third Proportional to 156,567 and 342,672

Step by Step Solution

1. Step 1: Write the proportion equation
   156,567 : 342,672 = 342,672 : x
2. Step 2: Convert to fraction form
   156,567/342,672 = 342,672/x
3. Step 3: Cross multiply
   156,567x = 342,672 × 342,672
4. Step 4: Simplify right side
   156,567x = 117,424,099,584
5. Step 5: Solve for x
   x = 117,424,099,584/156,567
6. Step 6: Final answer
   x = 749,992.65