Finding the Third Proportional to 134,109 and 279,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,109 : 279,238.50 = 279,238.50 : x
2. Step 2: Convert to fraction form
   134,109/279,238.50 = 279,238.50/x
3. Step 3: Cross multiply
   134,109x = 279,238.50 × 279,238.50
4. Step 4: Simplify right side
   134,109x = 77,974,139,882.25
5. Step 5: Solve for x
   x = 77,974,139,882.25/134,109
6. Step 6: Final answer
   x = 581,423.62