Finding the Third Proportional to 155,124 and 248,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,124 : 248,884.50 = 248,884.50 : x
2. Step 2: Convert to fraction form
   155,124/248,884.50 = 248,884.50/x
3. Step 3: Cross multiply
   155,124x = 248,884.50 × 248,884.50
4. Step 4: Simplify right side
   155,124x = 61,943,494,340.25
5. Step 5: Solve for x
   x = 61,943,494,340.25/155,124
6. Step 6: Final answer
   x = 399,315.99