Finding the Third Proportional to 328,543.50 and 706,173

Step by Step Solution

1. Step 1: Write the proportion equation
   328,543.50 : 706,173 = 706,173 : x
2. Step 2: Convert to fraction form
   328,543.50/706,173 = 706,173/x
3. Step 3: Cross multiply
   328,543.50x = 706,173 × 706,173
4. Step 4: Simplify right side
   328,543.50x = 498,680,305,929
5. Step 5: Solve for x
   x = 498,680,305,929/328,543.50
6. Step 6: Final answer
   x = 1,517,851.69