Finding the Third Proportional to 67,174.50 and 141,639

Step by Step Solution

1. Step 1: Write the proportion equation
   67,174.50 : 141,639 = 141,639 : x
2. Step 2: Convert to fraction form
   67,174.50/141,639 = 141,639/x
3. Step 3: Cross multiply
   67,174.50x = 141,639 × 141,639
4. Step 4: Simplify right side
   67,174.50x = 20,061,606,321
5. Step 5: Solve for x
   x = 20,061,606,321/67,174.50
6. Step 6: Final answer
   x = 298,649.14