Finding the Third Proportional to 33,470 and 70,390

Step by Step Solution

1. Step 1: Write the proportion equation
   33,470 : 70,390 = 70,390 : x
2. Step 2: Convert to fraction form
   33,470/70,390 = 70,390/x
3. Step 3: Cross multiply
   33,470x = 70,390 × 70,390
4. Step 4: Simplify right side
   33,470x = 4,954,752,100
5. Step 5: Solve for x
   x = 4,954,752,100/33,470
6. Step 6: Final answer
   x = 148,035.62