Finding the Third Proportional to 155,191 and 247,955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,191 : 247,955.50 = 247,955.50 : x
2. Step 2: Convert to fraction form
   155,191/247,955.50 = 247,955.50/x
3. Step 3: Cross multiply
   155,191x = 247,955.50 × 247,955.50
4. Step 4: Simplify right side
   155,191x = 61,481,929,980.25
5. Step 5: Solve for x
   x = 61,481,929,980.25/155,191
6. Step 6: Final answer
   x = 396,169.43