Finding the Third Proportional to 275,238 and 387,598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   275,238 : 387,598.50 = 387,598.50 : x
2. Step 2: Convert to fraction form
   275,238/387,598.50 = 387,598.50/x
3. Step 3: Cross multiply
   275,238x = 387,598.50 × 387,598.50
4. Step 4: Simplify right side
   275,238x = 150,232,597,202.25
5. Step 5: Solve for x
   x = 150,232,597,202.25/275,238
6. Step 6: Final answer
   x = 545,827.96