Finding the Third Proportional to 156,240 and 231,444

Step by Step Solution

1. Step 1: Write the proportion equation
   156,240 : 231,444 = 231,444 : x
2. Step 2: Convert to fraction form
   156,240/231,444 = 231,444/x
3. Step 3: Cross multiply
   156,240x = 231,444 × 231,444
4. Step 4: Simplify right side
   156,240x = 53,566,325,136
5. Step 5: Solve for x
   x = 53,566,325,136/156,240
6. Step 6: Final answer
   x = 342,846.42