Finding the Third Proportional to 70,742 and 153,148

Step by Step Solution

1. Step 1: Write the proportion equation
   70,742 : 153,148 = 153,148 : x
2. Step 2: Convert to fraction form
   70,742/153,148 = 153,148/x
3. Step 3: Cross multiply
   70,742x = 153,148 × 153,148
4. Step 4: Simplify right side
   70,742x = 23,454,309,904
5. Step 5: Solve for x
   x = 23,454,309,904/70,742
6. Step 6: Final answer
   x = 331,547.17