Finding the Third Proportional to 155,928 and 243,018.75

Step by Step Solution

1. Step 1: Write the proportion equation
   155,928 : 243,018.75 = 243,018.75 : x
2. Step 2: Convert to fraction form
   155,928/243,018.75 = 243,018.75/x
3. Step 3: Cross multiply
   155,928x = 243,018.75 × 243,018.75
4. Step 4: Simplify right side
   155,928x = 59,058,112,851.56
5. Step 5: Solve for x
   x = 59,058,112,851.56/155,928
6. Step 6: Final answer
   x = 378,752.46