Finding the Third Proportional to 179,580 and 392,815.25

Step by Step Solution

1. Step 1: Write the proportion equation
   179,580 : 392,815.25 = 392,815.25 : x
2. Step 2: Convert to fraction form
   179,580/392,815.25 = 392,815.25/x
3. Step 3: Cross multiply
   179,580x = 392,815.25 × 392,815.25
4. Step 4: Simplify right side
   179,580x = 154,303,820,632.56
5. Step 5: Solve for x
   x = 154,303,820,632.56/179,580
6. Step 6: Final answer
   x = 859,248.36