Finding the Third Proportional to 91,380 and 141,218.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,380 : 141,218.25 = 141,218.25 : x
2. Step 2: Convert to fraction form
   91,380/141,218.25 = 141,218.25/x
3. Step 3: Cross multiply
   91,380x = 141,218.25 × 141,218.25
4. Step 4: Simplify right side
   91,380x = 19,942,594,133.06
5. Step 5: Solve for x
   x = 19,942,594,133.06/91,380
6. Step 6: Final answer
   x = 218,238.06