Finding the Third Proportional to 151,478 and 234,540

Step by Step Solution

1. Step 1: Write the proportion equation
   151,478 : 234,540 = 234,540 : x
2. Step 2: Convert to fraction form
   151,478/234,540 = 234,540/x
3. Step 3: Cross multiply
   151,478x = 234,540 × 234,540
4. Step 4: Simplify right side
   151,478x = 55,009,011,600
5. Step 5: Solve for x
   x = 55,009,011,600/151,478
6. Step 6: Final answer
   x = 363,148.52