Finding the Third Proportional to 91,570.50 and 139,995

Step by Step Solution

1. Step 1: Write the proportion equation
   91,570.50 : 139,995 = 139,995 : x
2. Step 2: Convert to fraction form
   91,570.50/139,995 = 139,995/x
3. Step 3: Cross multiply
   91,570.50x = 139,995 × 139,995
4. Step 4: Simplify right side
   91,570.50x = 19,598,600,025
5. Step 5: Solve for x
   x = 19,598,600,025/91,570.50
6. Step 6: Final answer
   x = 214,027.44