Finding the Third Proportional to 259,551.84 and 392,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   259,551.84 : 392,786.72 = 392,786.72 : x
2. Step 2: Convert to fraction form
   259,551.84/392,786.72 = 392,786.72/x
3. Step 3: Cross multiply
   259,551.84x = 392,786.72 × 392,786.72
4. Step 4: Simplify right side
   259,551.84x = 154,281,406,426.39
5. Step 5: Solve for x
   x = 154,281,406,426.39/259,551.84
6. Step 6: Final answer
   x = 594,414.60