Finding the Third Proportional to 154,449 and 338,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,449 : 338,422.50 = 338,422.50 : x
2. Step 2: Convert to fraction form
   154,449/338,422.50 = 338,422.50/x
3. Step 3: Cross multiply
   154,449x = 338,422.50 × 338,422.50
4. Step 4: Simplify right side
   154,449x = 114,529,788,506.25
5. Step 5: Solve for x
   x = 114,529,788,506.25/154,449
6. Step 6: Final answer
   x = 741,537.91