Finding the Third Proportional to 155,187 and 247,948.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,187 : 247,948.50 = 247,948.50 : x
2. Step 2: Convert to fraction form
   155,187/247,948.50 = 247,948.50/x
3. Step 3: Cross multiply
   155,187x = 247,948.50 × 247,948.50
4. Step 4: Simplify right side
   155,187x = 61,478,458,652.25
5. Step 5: Solve for x
   x = 61,478,458,652.25/155,187
6. Step 6: Final answer
   x = 396,157.27