Finding the Third Proportional to 154,782 and 338,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,782 : 338,719.50 = 338,719.50 : x
2. Step 2: Convert to fraction form
   154,782/338,719.50 = 338,719.50/x
3. Step 3: Cross multiply
   154,782x = 338,719.50 × 338,719.50
4. Step 4: Simplify right side
   154,782x = 114,730,899,680.25
5. Step 5: Solve for x
   x = 114,730,899,680.25/154,782
6. Step 6: Final answer
   x = 741,241.87