Finding the Third Proportional to 148,876.50 and 324,521

Step by Step Solution

1. Step 1: Write the proportion equation
   148,876.50 : 324,521 = 324,521 : x
2. Step 2: Convert to fraction form
   148,876.50/324,521 = 324,521/x
3. Step 3: Cross multiply
   148,876.50x = 324,521 × 324,521
4. Step 4: Simplify right side
   148,876.50x = 105,313,879,441
5. Step 5: Solve for x
   x = 105,313,879,441/148,876.50
6. Step 6: Final answer
   x = 707,390.89