Finding the Third Proportional to 155,427.50 and 247,154

Step by Step Solution

1. Step 1: Write the proportion equation
   155,427.50 : 247,154 = 247,154 : x
2. Step 2: Convert to fraction form
   155,427.50/247,154 = 247,154/x
3. Step 3: Cross multiply
   155,427.50x = 247,154 × 247,154
4. Step 4: Simplify right side
   155,427.50x = 61,085,099,716
5. Step 5: Solve for x
   x = 61,085,099,716/155,427.50
6. Step 6: Final answer
   x = 393,013.46