Finding the Third Proportional to 30,588.75 and 67,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,588.75 : 67,198.50 = 67,198.50 : x
2. Step 2: Convert to fraction form
   30,588.75/67,198.50 = 67,198.50/x
3. Step 3: Cross multiply
   30,588.75x = 67,198.50 × 67,198.50
4. Step 4: Simplify right side
   30,588.75x = 4,515,638,402.25
5. Step 5: Solve for x
   x = 4,515,638,402.25/30,588.75
6. Step 6: Final answer
   x = 147,624.16