Finding the Third Proportional to 69,684 and 148,360

Step by Step Solution

1. Step 1: Write the proportion equation
   69,684 : 148,360 = 148,360 : x
2. Step 2: Convert to fraction form
   69,684/148,360 = 148,360/x
3. Step 3: Cross multiply
   69,684x = 148,360 × 148,360
4. Step 4: Simplify right side
   69,684x = 22,010,689,600
5. Step 5: Solve for x
   x = 22,010,689,600/69,684
6. Step 6: Final answer
   x = 315,864.32