Finding the Third Proportional to 30,204.56 and 68,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,204.56 : 68,242.50 = 68,242.50 : x
2. Step 2: Convert to fraction form
   30,204.56/68,242.50 = 68,242.50/x
3. Step 3: Cross multiply
   30,204.56x = 68,242.50 × 68,242.50
4. Step 4: Simplify right side
   30,204.56x = 4,657,038,806.25
5. Step 5: Solve for x
   x = 4,657,038,806.25/30,204.56
6. Step 6: Final answer
   x = 154,183.29