Finding the Third Proportional to 141,100.50 and 218,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,100.50 : 218,571.50 = 218,571.50 : x
2. Step 2: Convert to fraction form
   141,100.50/218,571.50 = 218,571.50/x
3. Step 3: Cross multiply
   141,100.50x = 218,571.50 × 218,571.50
4. Step 4: Simplify right side
   141,100.50x = 47,773,500,612.25
5. Step 5: Solve for x
   x = 47,773,500,612.25/141,100.50
6. Step 6: Final answer
   x = 338,577.83