Finding the Third Proportional to 155,538 and 340,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,538 : 340,291.50 = 340,291.50 : x
2. Step 2: Convert to fraction form
   155,538/340,291.50 = 340,291.50/x
3. Step 3: Cross multiply
   155,538x = 340,291.50 × 340,291.50
4. Step 4: Simplify right side
   155,538x = 115,798,304,972.25
5. Step 5: Solve for x
   x = 115,798,304,972.25/155,538
6. Step 6: Final answer
   x = 744,501.70