Finding the Third Proportional to 69,540 and 152,900

Step by Step Solution

1. Step 1: Write the proportion equation
   69,540 : 152,900 = 152,900 : x
2. Step 2: Convert to fraction form
   69,540/152,900 = 152,900/x
3. Step 3: Cross multiply
   69,540x = 152,900 × 152,900
4. Step 4: Simplify right side
   69,540x = 23,378,410,000
5. Step 5: Solve for x
   x = 23,378,410,000/69,540
6. Step 6: Final answer
   x = 336,186.51