Finding the Third Proportional to 241,077.75 and 387,132

Step by Step Solution

1. Step 1: Write the proportion equation
   241,077.75 : 387,132 = 387,132 : x
2. Step 2: Convert to fraction form
   241,077.75/387,132 = 387,132/x
3. Step 3: Cross multiply
   241,077.75x = 387,132 × 387,132
4. Step 4: Simplify right side
   241,077.75x = 149,871,185,424
5. Step 5: Solve for x
   x = 149,871,185,424/241,077.75
6. Step 6: Final answer
   x = 621,671.58