Finding the Third Proportional to 30,991.50 and 67,133.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991.50 : 67,133.25 = 67,133.25 : x
2. Step 2: Convert to fraction form
   30,991.50/67,133.25 = 67,133.25/x
3. Step 3: Cross multiply
   30,991.50x = 67,133.25 × 67,133.25
4. Step 4: Simplify right side
   30,991.50x = 4,506,873,255.56
5. Step 5: Solve for x
   x = 4,506,873,255.56/30,991.50
6. Step 6: Final answer
   x = 145,422.88