Finding the Third Proportional to 56,991 and 124,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,991 : 124,015.50 = 124,015.50 : x
2. Step 2: Convert to fraction form
   56,991/124,015.50 = 124,015.50/x
3. Step 3: Cross multiply
   56,991x = 124,015.50 × 124,015.50
4. Step 4: Simplify right side
   56,991x = 15,379,844,240.25
5. Step 5: Solve for x
   x = 15,379,844,240.25/56,991
6. Step 6: Final answer
   x = 269,864.44