Finding the Third Proportional to 305,338.50 and 433,404

Step by Step Solution

1. Step 1: Write the proportion equation
   305,338.50 : 433,404 = 433,404 : x
2. Step 2: Convert to fraction form
   305,338.50/433,404 = 433,404/x
3. Step 3: Cross multiply
   305,338.50x = 433,404 × 433,404
4. Step 4: Simplify right side
   305,338.50x = 187,839,027,216
5. Step 5: Solve for x
   x = 187,839,027,216/305,338.50
6. Step 6: Final answer
   x = 615,182.91