Finding the Third Proportional to 155,078 and 335,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,078 : 335,918.50 = 335,918.50 : x
2. Step 2: Convert to fraction form
   155,078/335,918.50 = 335,918.50/x
3. Step 3: Cross multiply
   155,078x = 335,918.50 × 335,918.50
4. Step 4: Simplify right side
   155,078x = 112,841,238,642.25
5. Step 5: Solve for x
   x = 112,841,238,642.25/155,078
6. Step 6: Final answer
   x = 727,641.82