Finding the Third Proportional to 70,380 and 155,160

Step by Step Solution

1. Step 1: Write the proportion equation
   70,380 : 155,160 = 155,160 : x
2. Step 2: Convert to fraction form
   70,380/155,160 = 155,160/x
3. Step 3: Cross multiply
   70,380x = 155,160 × 155,160
4. Step 4: Simplify right side
   70,380x = 24,074,625,600
5. Step 5: Solve for x
   x = 24,074,625,600/70,380
6. Step 6: Final answer
   x = 342,066.29