Finding the Third Proportional to 70,658 and 155,140

Step by Step Solution

1. Step 1: Write the proportion equation
   70,658 : 155,140 = 155,140 : x
2. Step 2: Convert to fraction form
   70,658/155,140 = 155,140/x
3. Step 3: Cross multiply
   70,658x = 155,140 × 155,140
4. Step 4: Simplify right side
   70,658x = 24,068,419,600
5. Step 5: Solve for x
   x = 24,068,419,600/70,658
6. Step 6: Final answer
   x = 340,632.62