Finding the Third Proportional to 67,720 and 148,564

Step by Step Solution

1. Step 1: Write the proportion equation
   67,720 : 148,564 = 148,564 : x
2. Step 2: Convert to fraction form
   67,720/148,564 = 148,564/x
3. Step 3: Cross multiply
   67,720x = 148,564 × 148,564
4. Step 4: Simplify right side
   67,720x = 22,071,262,096
5. Step 5: Solve for x
   x = 22,071,262,096/67,720
6. Step 6: Final answer
   x = 325,919.40