Finding the Third Proportional to 30,874.50 and 72,191.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,874.50 : 72,191.25 = 72,191.25 : x
2. Step 2: Convert to fraction form
   30,874.50/72,191.25 = 72,191.25/x
3. Step 3: Cross multiply
   30,874.50x = 72,191.25 × 72,191.25
4. Step 4: Simplify right side
   30,874.50x = 5,211,576,576.56
5. Step 5: Solve for x
   x = 5,211,576,576.56/30,874.50
6. Step 6: Final answer
   x = 168,798.74