Finding the Third Proportional to 141,196.50 and 220,131

Step by Step Solution

1. Step 1: Write the proportion equation
   141,196.50 : 220,131 = 220,131 : x
2. Step 2: Convert to fraction form
   141,196.50/220,131 = 220,131/x
3. Step 3: Cross multiply
   141,196.50x = 220,131 × 220,131
4. Step 4: Simplify right side
   141,196.50x = 48,457,657,161
5. Step 5: Solve for x
   x = 48,457,657,161/141,196.50
6. Step 6: Final answer
   x = 343,193.05